Its tiny, smaller than a nano ipod, and when idle is completely black -- the OLED screen disappears. 2G is plenty, and it also has an FM tuner with presets, as well as a text file viewer.

The sound is great (after ditching the headphones it came with, and plugging in some good Sennheiser ones). The touch sensitive case took an hour or so to really get the handle of, and it seems quite intuitive now.

Had a bit of trouble at the start using it under OpenBSD (I managed to mangle the partition table on the device, and couldn't produce a vfat fs anyway), but under Linux things work perfectly, appearing like a usb stick.

So, all in all: tiny, beautiful, functional.