Broke down and got one, and what a fine device it is. Though I have large hands, this thing isn't bad to handle and control. Apple sure knows how to make quality MP3/AAC players. Adding a radio tuner would have been nice, but for my use, this will be fine. I also have a SanDisk DAP SDMX1 1GB player for the FM need... But the 4GB iPod nano is, as my 11-year old niece would say, "The Bomb".
Now to get some accessories for it... Dock, headphones, etc.
If anyone is looking for a flash player, look no further than the iPod nano. Excellent player!!!