one of my team mate has the new psp which support skype,he enabled and login through our office wi-fi. He finds it slow and not user friendly to work with.voice was lagging. We tried this at night -only five of us at office and office has 5+mbps line.
remember the new model is not hacked yet.it has a better screen which is good for viewing movies n all but bad for playing games becaz it shows the jagginess of the low resolution psp games in the new high resolution screen.
happy gaming