The GP2X Store have just posted that they have the special edition Treamcast back in stock for those interested.

Heres more info on what a Treamcast is:

Treamcast Special Edition is the latest edition of the Treamcast family. This special edition comes in matt black with a sharp TFT screen for optimum performance. This collectors edition has also be redesigned using the some of feedback we have received from happy users.
Description
Comes with: Treamcast console, Joypad, AC adaptor, Car adaptor, Case. Everything in the picture is included.

- Matt Black for a more sleek look

- The first 128bit console

- Advance PowerVR graphics chip

- Samsung 5” TFT screen for optimum performance

- Brightness and Volume control

- Headphone output

- Plays all region Dreamcast games

- Plays Dreamcast homebrews

- 12v car adapter

- 100-240V auto switching power adapter comes with 2 pin cable (cable can be changed to suit your needs)

- Comes with an original Dreamcast controller for optimum performance

- Can be connected to a normal TV (cable not supply and its outputs a NTSC signalfor best compability)