VideoBeast
VideoBeast is a graphics processor module for 8-bit computers that brings 2D Arcade level graphics to the Beast platform, the ZX Spectrum and your hobby project. It behaves like a 16K RAM chip for an 8-bit host computer, but outputs VGA and above resolution graphics, with advanced features including sprites, tiles and multiple layers
Host interface cards for a range of machines are soon to be available for early access users.
The VideoBeast technical doc is here
More documentation and example code is coming soon...