Blank white screen
I turned off power on iPod touch while it was updating. Did I ruin it?
iPod touch (4th generation)
Try a hard reset. If that does not work, let the battery die, recharge and test again.
17" 2.2GHz i7 Quad-Core MacBook Pro 8G RAM 750G HD + OCZ Vertex 3 SSD Boot HD
Got problems with your Apple iDevice-like iPhone, iPad or iPod touch? Try Troubleshooting 101
In Memory of Steve Jobs
Got problems with your Apple iDevice-like iPhone, iPad or iPod touch? Try Troubleshooting 101