Funny thing is the guy didn't actually try the A2024 modes at all, he just ran regular PAL modes (the A2024 has a built-in framebuffer that reassembles the interlaced input and displays it as progressive scan).
Its big killer feature, though, was that it supported other resolutions like 1024x800 and 1024x1024 by using a DCTV/HAM-E/Graffiti-style magic cookie to cause it to interpret 4-bit pixels differently. The difference is that while those other adapters combined two 4-bit pixels into one higher-color 8-bit pixel to give you more colors at lower resolution, the A2024 takes a 4-bit RGBI pixel and converts it into two 2-bit greyscale pixels to give you fewer colors at higher resolution (and does it in an odd way at that, populating its framebuffer in a way that's not linear to the source signal -- it actually samples multiple frames and combines them into a 10Hz or 15Hz effective refresh rate!)
