Maybe I'm being dense, but I'm not quite sure how you safely upgrade the 3G to FW 3.0. I've gotten burned on this before with 2.2 and I don't intend on doing it again.
First it says to upgrade your firmware to 3.0. Upgrade it with official FW through iTunes? Does it require any preparation beforehand? (Baseband, bootloader etc.)
So basically am I missing something or am I just being paranoid and it's safe to upgrade and do the sn0w?