SSNTails
What part of 'RETIRED' don't you understand?
the only way we're ever going to get reasonable performance on Android
Maybe, maybe not. If you want to truly replicate software, there's still a lot of work that's going to have to occur on the CPU. In a perfect implementation, you would be able to disable the Z-buffer and accurately draw the entire scene -- this means clipping polygons in screen-space and other wonderfully enjoyable tasks. It's going to be the only way to replicate a lot of effects, including proper ordering of translucent walls/floors.