Android app list

Given that most of us have Android devices, I thought that a list of our favourite apps would be a handy way of keeping track of what the good apps are out there.

Pulse News – News, RSS feed and social network aggregator.
Train Trapper – Melbourne train timetables with location support.
Tram Hunter – Melbourne tram timetables with location support.
Astrid Tasks – Task management list, with Google and Producteev support.
Our Groceries – Grocery lists with syncing between multiple Android devices
SportyPal – Multi-platform GPS sports statistics tracking.
DropBox – Online file hosting service.
Words With Friends – Two player Scrabble.
X Construct – Bridge building game.
Medieval Castle Defense – Tower defence game.