I used this guide http://www.hackint0sh.org/forum/showthread.php?t=5273

to bypass acitvation on my iPhone. Upgraded to 1.0.2, then installed these two apps, and used my current at&t sim to just use the phone without activation. Then I decided yesterday that I wanted 1.1.1 and everything to be done legitimitely, there was no reason not to, so I hit "restore" and I think it installed 1.1.1 in the process (I wanted this firmware anyway). Then I legitimitely activated the iPhone yesterday using an iPhone plan (I wanted visual voice mail mostly, and I know that apple will keep trying to block hacks and such, not that important to me). My question is, will apple know that I previously bypassed activation? Is my warranty voided in the event that I ever need to use it?

If so, that really sucks. Because I just bought the iPhone two days ago... (never unlocked it either, no point i'm already on at&t)

No, they wont know