Comex has released the iOS 4 jailbreak for iPhone 3G, iPhone 3GS, iPhone 4. This time around, it's a web-based app used to jailbreak the phone. All one have to do is visit www.jailbreakme.com on their iPhone and it will automatically download and install the jailbreak. Takes less than 2 minutes. When done, you'll presented with this screen:

http://www.itunes.com/iphone4_case_program

Apple is offer a bunch of different free cases for the iphone 4 through an App they made. Download the app by clicking the link above, and install onto your iphone 4.

Delivery of the cases takes 3-5 weeks.

1 free case per iphone 4.

Apple announced Friday, that they will be giving out free bumper cases to iPhone 4 owners by mail. You can apply for one on their website next week. Offer only good until September 30. At that time, they will either continue offering free bumpers or have other options to fix the antenna issue.

Better hurry and apply for one next week, it will be gone fast.

Settings>General>Usage, set Battery Percentage to on.
Very useful to see how fast the battery drains. This is not available in 3G, 2G devices.

When sending your HD video recordings using the iPhone built-in "Send To YouTube" feature, the software compresses your video and then sends it to YouTube. The compression is extreme and the HD 720p resolution is loss, looks terrible in YouTube. I recommend to upload the raw .MOV file from your iPhone to your PC, then upload it to YouTube.

iPhone 4's screen is fantastic. YouTube HD videos show extreme sharpness. Makes me want to browse through YouTube videos more often.

Top image is iPhone 4, Bottom image is iPhone 3G

Click on image to see full size. It's a huge difference in terms of pixel amount.

Pretty sharp!