iPod touch accidental recovery mode

Try this:

http://www.ipodtouchfans.com/forums/showthread.php?t=32564

But you'll need a PC or Bootcamp. I've never tried it, but I came across this a while back.

Goodluck

You could also try iNdependence if you're on a Mac. Worked for me after JB'ing 1.1.2.

If you didn't attach it to a computer, it may come out if you just cycle power, if you did, you will need ibriker, or independance