Inspite of poor driver support even for Windows and no support for MacOSX Insanely Mac forum posters ryuu123 and maccosmo loaded MacOSX on the 1.5lb netbook. They have posted instructions on getting Leopard running on the Vaio P, however it is a very complex procedure and you need to know all the tricks of the trade.

Is it faster then VISTA?
"yes" - but you can't run 3d apps/games because of the missing gma500 drivers. apart from that - everthing is faster than vista. but the fastest os on the machine is windows xp.

I should also mention there's no ethernet, wifi, gps and as I said no 3g support - and the audio works not as expected (the audio sounds distorted).

[Insanely Mac via BBG]