Im very happy with my new Nokia 770, its an Internet Tablet that is between a mobile phone and a mini computer. It has an ARM processor, MMC memory, Wlan, Bluetooth, and an impressive 800x480 screen.
The cool thing is that is based on Debian Linux (Kernel 2.6.12). I bought it because i wanted to do some test and try to build a Security testing device, im developing a GUI based bluetooth scanner, and coding some Python tools. :)
There are available tools like: nmap, ettercap, aircrack-ng, kismet, rdesktop, and many more!
Here are some photos: