Last night I was trying to download something knowing that it probably wouldn't have worked. It required me to restart springboard--I did. It failed. I did the usual technique which is rejailbreaking the device. It didn't work. I'm stuck here and have no clue what to do. It's just stuck at the Apple logo and has been that way. I'm in a public place (Hurricane Irene knocked out power) and am in need of a quick answer if anyone can help. In advance, thank you.