Written by John Hudson

Justin Sullivan/Getty Images At Apple’s developer conference in San Francisco, Steve Jobs unveiled his company’s next generation smartphone, the iPhone 4. With over 100 new features, there’s a lot to drool over. Here’s what gadget geeks are most excited about:

• Pricing and Color Schemes Michael Bettiol at Boy Genius Report writes: “The iPhone 4 will be available in both black and white. The 16GB model will be $199 and the 32GB model will be $299. Both of these prices reflect the 2-year contract price with AT&T. Pre-orders for the US, UK, Germany, France, and Japan will commence on the 15th of June. June 24th is the big day as far as actual availability goes.”
• It’s Super-Thin, writes Agam Shah at PC World: “The iPhone 4 sports a new look and is the thinnest smartphone, [Jobs] said. At 9.3 millimeters (0.36 inches) thick, the new iPhone is 24 percent thinner than iPhone 3GS.”
• ‘You Can Bing It,’ praises Miguel Helft at The New York Times: “No black eye for Google, but a win for Microsoft. Mr. Jobs announces that in addition to Google, which remains the default search engine, and Yahoo, which was already an option on the iPhone, iOS 4 will give users the option to use Bing for their searches.”
• An Incredible Display Screen, notes Ed Oswald at Technologizer: “Another major feature is the ‘Retina display,’ Apple’s upgraded screen for the iPhone 4. The resolution comes in at 326dpi, which along with some software magic makes for clear, smooth fonts and more vivid images. Jobs said the resolution is actually higher than the human eye can see (exaggeration, perhaps?). Either way, Apple expects it to be ‘years’ before anybody matches this display.”
• Video Chat and Camera Overhaul, details Matt Brian at The Next Web: “Steve Jobs has just announced that the iPhone 4 has been given a complete overhaul in the camera department, upgrading the 3MP camera on the 3GS to a 5MP LED flash enabled camera that has 5x digital zoom. The handset has a backside illuminated sensor, integrated so the imaging sensor can “get more light, enabling iPhone users to take better quality low-light photos. Pixel sensors have been kept larger instead of blindly increasing megapixels to improve picture clarity and quality… The iPhone 4 will be able to record full 720p HD video at 30fps with tap to focus, one-click sharing and the LED flash will stay illuminated to allow the recording of video in low-light situations. Instead of cropping videos on the iPhone 3GS, iPhone 4 owners will be able to edit HD video using….wait for it…….iMovie for iPhone!” On top of that, there’s also video chat: “You can use the front or rear camera, so people can see what you are seeing. Portrait or Landscape. The app is called FaceTime. ‘Apple will ship 10s of millions of FaceTime devices this year, so there will be lots of people to talk to.'”
• Chip and Battery Overhaul, writes MG Siegler at TechCrunch: “As expected, the iPhone 4 will use Apple’s A4 chip. The device also has a bigger battery than ever before. The combination of these two things allows for 40% better battery life in some situations, Jobs said.”
• The Gyroscope, writes Jesus Diaz at Gizmodo: “The new iPhone 4 has a gyroscope built-in. This means that it can track movement with a very high precision, much higher than the built-in accelerometers in the previous iPhones. It’s 3-axis, so it’s capable of detecting pitch, roll, and yaw. Couple with the accelerometer, you have 6-axis motion sensing.”

Apple’s iPhone 4: What Buyers Need to Know

Written by Chloe Albanesius

Apple’s iPhone 4 is now official and will be in stores on June 24. Are video calling, a front-facing camera, and the iBooks app enough to make you buy one? If you’re on the fence, or trying to figure out if you can afford to invest in Apple’s latest gizmo, here’s what you need to know about making the switch.

For more information and details of the new iPhone 4, check out our report of the launch of the Apple iPhone 4 as well as our hands on with the Apple iPhone 4.

How much will the iPhone 4 cost me?

The iPhone 4 will be offered in a 16 G-byte version and a 32GB version. For new and “upgrade eligible” customers who sign a two-year contract with AT&T, the 16-GB version will cost $199 and the 32-GB version will retail for $299.

Upgrades? I can’t just buy a new iPhone 4?

In general, AT&T iPhone customers who spend more than $99 per month per line are eligible for an upgrade when they are between 12 and 18 months into their contract, so that AT&T doesn’t lose money on the older iPhone model it has already subsidized. You’re not locked out of a new iPhone, but if you do make the switch before your upgrade date, you’ll pay $100 more than a new iPhone customer.

The good news is that Steve Jobs announced Monday that AT&T will subsidize iPhone customers upgrading to the iPhone 4 up to six months earlier than their current upgrade date. Now, if your upgrade date occurs before the end of 2010, you can buy the new iPhone 4 for $199 or $299.

How do I know if I’m “upgrade eligible”?

Check your status at att.com/iphone or dial *639#.

I’m not eligible. Boo. How much will the iPhone 4 cost me?

If you opt for an “early upgrade,” the 16GB will cost $399 and the 32GB will sell for $499.

Any options if I don’t want to deal with a two-year AT&T contract?

If you’re not jazzed at the prospect of a two-year commitment to AT&T, the 16GB iPhone 4 will cost $599 and the 32GB will retail for $699.

What type of data plans are offered for the iPhone 4? If you are switching from another carrier or upgrading to a smartphone, AT&T will offer its new tiered data plan. DataPlus will provide 200MB for $15 per month, while DataPro will allow up to 2GB per month for $25. For more information on AT&T’s new plan, check out PCMag’s guide.

If I already have AT&T, do I need to switch to a tiered data plan?

No. If you are an existing AT&T smartphone user, you don’t need to switch to a new plan. You might want to ask specifically about this when talking with AT&T, however. I have a BlackBerry through AT&T, and I called on Monday afternoon to see if my bill would change at all if I upgraded to an iPhone 4 later this month. The customer service rep quoted me the new tiered data plans – 200MB for $15 or $25 for 2GB. When I pointed out that AT&T’s iPhone 4 press release said that existing smartphone customers do not have to switch to a new plan, the rep said I was correct and could keep my plan. Granted it’s the first day these reps are dealing with iPhone 4 questions, but when it comes to unlimited vs. tiered, I want my unlimited plan.

Any other charges?

Customers with an iPhone 4, iPhone 3GS, or iPhone 3G can add tethering for an extra $20 per month. If you’re on a family plan, you can add another line starting at $24.99.

When can I get it?

The iPhone 4 will be available in Apple and AT&T retail stores on June 24. Customers can start pre-ordering the devices on June 15 on the AT&T and Apple Web sites.

The iPhone 4 is a bit pricey. Any deals on older models?

Yes, new and upgrade eligible customers can get the 8-GB version of the iPhone 3G for $99 with a contract. Early upgraders will pay $299, and those who don’t sign a two-year contract with AT&T can get the 8GB iPhone 3GS for $499.