Renesas is offering a promotion version of their RL78 microcontroller.  This offer is only available to their Sample Component account holders, but the process for signing up for a sample account is pretty straightforward.  (There may be EAR restrictions with this board.)

If you are looking for a powerful processor that is an alternative to PIC or AVR processors, this board might be worth a look.

[i]Note:  It appears samplecomponents.com might have been compromised at some point in the past.  Google throws a warning page up.  Proceed at your own discretion.[/i]

Renesas Promotion Board for RL78/G13 | Renesas Electronics America.