Yeah was a bit disappointed that they don't provide one unlike Expansys, charging through my PC works fine though.

Enabled developer mode, syncing around 6 accounts (Exchange, Twitter, Facebook e.t.c) and have been playing around with it quite a bit today. Sometimes there seems to be a bit of a performance decrease (bit of slowdown, or taking a while for an app to load) but no crashes, it's been rock solid. Mine too is from Poland so this must be a good batch.