Hmm, so after trying this I'm not exactly impressed. The menu visibly lags and it just sits and... well, either does nothing or the screen goes blank when I try to play a relatively simple video. This is with a preexisting plex setup that works fine.

I'm running on an original B, but the site mentions nothing about the split - so maybe it only works on the 512mb models (I really wish they had changed the name, though the site says "A Raspberry Pi mini-computer" is required, and I doubt it works on the A, so they don't seem to be explicit any way).