Hot off the presses...

New jailbreak by comex.  Jailbreaks all devices (as far as I know) right from the device!

I've personally tested with a 3GS old bootrom on stock iOS 4.0.1 and iPad 3G running 3.2.1.

For more information check the iphoneincanada.ca blog and thebigboss.org blog.

All you have to do is goto jailbreakme.com and slide the slider at the bottom!

Don't forget to donate to comex!