Leaked over a week early, get the download here.

 iPhone1,2_3.0_7A341_Restore.ipsw (230.05mb)

This file might be for iPhone 3G only, might not work on Touch or 2G.

3.0 Firmware includes new Cut/Copy/Paste which I am going to be using alot. Other features include, MMS, Spotlight search, File sharing betwwen iphones, Push Notifications...