I developed a Midlet PokerClock. PokerClock allows you to keep track of blind levels when hosting a Poker Tournament. You can
- define small and big blind and
- set the time for each level
It counts down the time for each level and plays a sound when changing into a new level.
Give it a try: http://www.getjar.com/products/9347/PokerClock (download it directly from your mobile)