It's pretty much finished! Sure there are other variants of PICtris out there, but this is 100% mine.
The Tetris game runs on a PIC which controls all of the 2D graphics rotation and rule checking.
Objects are rotated mathematically, which allows for other 2D games to be easily made (might try Asteroids next?)
Full source code and schematics can be found here: http://digital-diy.com/home/swordfish/projects/213-tetris-on-a-pic.html