Jailbreak Your iOS 4 Device (iPhone 4 Included!) Straight from Mobile Safari
Comex has finally delivered on his promise to be the first to make the iPhone 4 jailbreak-able. Not only that, but he found a way to make it possible straight from mobile Safari on the phone. (If you don’t have an iPhone 4 but still want to try this, it’s fine. The process can presumably be done on all devices running iOS 4.) All of this, only days after the official legalization of jailbreaking. Newly-converted iPhone 4 jailbreakers rejoice!

The latest on-the-fly jailbreak for iPhones, iPod touches, and iPads running iOS 4 (Credit: AppleInsider)
PROCEED JAILBREAKING WITH CAUTION! There have been reports of jailbreakers experiencing a lot of crashes with Safari when trying to complete the jailbreak. On top of this, when some of these users try to reboot their phones, they get nothing but the Apple logo. However, this is probably nothing more than a corruption during installation that a nice restore will fix. Other than that, most have reported success using this method.
When the jailbreak was first released, iPhone 4 users experienced a loss of certain MMS and FaceTime features, but an update has been reportedly released to fix this. If you’re one of these users and jailbroke prior to the update, you should be able to revisit the site and jailbreak again in order to regain these missing features.
If you’ve taken all of this into consideration and are still interested in giving it a try, the link is below.
To jailbreak straight from mobile Safari, just load-up http://www.jailbreakme.com/ on your iDevice, slide your finger across “slide to jailbreak”, and watch the entire process take place in the palm of your hands. (That’s assuming Comex’s servers aren’t down from the high demand of downloads from jailbreakers right now.)
(Via: AppleInsider)
(Source: JailbreakMe)

I can’t wait until they develop a jailbreak for 4.0.2 just to rub it in Apple’s face. They can’t keep us down.
When I go it says
Not available on your device
Wait no it says
Not supported