Here is our AVR project we are working since late 2011.
It is ideal platform for lowres games RPG, JumpAndRun, 2D Platform etc etc.
It is based on Jerrys AVGA platform.
(He is also behind all RetroWiź hardware, HW designer).
I am WWW and FORUM admin, enclosure designer.
We call our platform RetroWiz. (from "Retrocomputer Wizard" or "Retrogaming Wizard").
Our webpage will be here:
http://www.retrowiz.com
Our forum is online (since 12.nov.2012):
/antispam password - atmega328/
http://www.forum.retrowiz.com
1st early prototype - brown AVGA y. 2009:

Video AVGA platform:
Screenshot from AVGA platform:
Hackaday Blog:
http://hackaday.com/tag/avga/
RETROWIZ:
2nd prototype // green one y.2011-2012:


3th prototype PCBs // blue one y.2012:

Our JAVA game editor:

SPECs:
{still work in progress, not final}
PCB half size of Raspberry Pi!!!
172x200 x 16 colors
simple beeper (in near future FM synth codec)
menu and firmware on chip
20 mhz/8bit RISC cpu (ATMEGA328)
stereo audio out
VGA out
PS/2 keyboard port for keyboard or arcade joy hacks
C language API
SD card port
good price
It will be awesome platform for FM music, pixelart, retrogames, indiegames, coding...
Join FORUM, join DEVELOPMENT and welcome to RetroWiz world...
Have a nice day.
Matej











