Arduino

In a thread labelled "Loss of Skills" on QRP-L, VE3HOP, Paul Anderson
mentions he's been dying to play with the Arduino board.

The Arduino board is a development board using the ATmega8 chip.
Some interesting feature of the board:

• USB interface
• It has its own Arduino IDE (that runs on OS X, Linux, & Windows
  
• It has its own language "Wiring"

VE3HOP also has an interesting blog named "Old School Hacker".