Thanks to this my ipod works again1 I had the opposite issue! My Ipod touch 32g- 3rd generation (onnly a month old) was fully charged. I had the Tapfish app open and had to do something else, instead of going into sleep mode it turned off and would not come back on. Even after pluggin it in for a good while! Also the just holding the on-button for 10 seconds would n't do it!
If your device freeses while a download, turn it off, then hold just the tunron botton on top for about 10 secnds until the Apple logo shows up.
If it won't turn on anymore hold both select-button (on the front bottom of the device and the powerbutton (Top-Frame_ of device for at least 10 seconds or a little longer until apple logo appears!