The blockchain download problem is now gone after a reinstall. I was able to receive 0.001BTC. I sent 0.001BTC back to my PC wallet 16h ago (1NCTneo6yy8b1bok7F2U7RP4VgciHY2sik) but the transaction does not show up, not even unconfirmed, both client have been runnning constantly. Did anybody manage to sent money from the Android client? What is the clients policy for resending unconfirmed transactions?