Ok, I've done some searching and using MRoogle I cannot get an answer as to why this happened. Wife got a shiny brand new iPhone 4 16gb last night and this morning her alarm didn't go off. Luckily her BB Curve that she replaced, and powered down before we went to bed, powers on this morning and starts blaring away at the correct time. Is there something in Setting that I'm missing? My iPhone was also set, but for a later time, and went off fine. Seems like a very sporadic problem from what i've found searching.