I'm using Android bitcoin wallet version 2.0 on a Kindle Fire. The app recives coins from the faucets perfectly fine, but when i send coins to my desktop wallet, they never arrive, and the transactions are shown as "unfinished" [in gray.]

The address i used to recive the coins from the faucet, and to send to my desktop, is 1K7MZNsaquwshDHYu5zP9FY2DSS4L34BSx