Here is a link to the iPhone Firmware 2.0 Beta that was leaked just recently. The official release shouldn't be out until June :).
Download here:
http://rapidshare.com/files/105059552/iPhone2.0.part1.rar
http://rapidshare.com/files/105067434/iPhone2.0.part2.rar
password: ifoon
You will also need to download Pwnage tool + wifi fix. This software is mac only at the moment. The windows version should be ready shortly.
Download Here:
http://rapidshare.com/files/105049101/iphonepwn.rar
password: pawned
Enjoy!
