Hope it's a success
I'll buy one.
I'm still using my Sony Clie TH55 - runs palmOS and is the best PDA device I have had. Similar size to an iToucj full colour touchscreen, wifi, camera, headphone socket, syncs with outlook. Use it everyday. It's 5 years older than the iTouch but is essentially the same device - except it has a memorycard slot for expansion.
Here's hoping that Palm sticks around and forces Apple to keep innovating.