I thought you were talking about Aros' GUI toolkit, the MUI clone "Zune". Thankfully it's just some unpopular Micro$oft crap.
Only time seen zune is on the xbox 360 for playing video have no choice but to use it
Works okay to play vids of the xbox live
Prefer Ps3 way doing things though
Actually of topic the ps3 browser got alot better last update was bit nasty before.
Still not the best though not sure what linux software they use or there on sony one