Sure, I guess. But isn't an Xbox kinda like exactly what a Playstation is? I've made some different tradeoffs in my design which I think are good for game developers. I'm excited to see comparisons. It certainly wouldn't be hard to make a multi-platform game with versions for both machines. (I consider my approach to have an advantage here - my system just uses SD cards, so there's no special tooling to make the game carts.)
It's all software-rendered, using the ARM9 core. There's no GPU in this system - I find them annoying to deal with.