Timer! is the Best Multi-Timer app for your iDevice!
Check Out Timer! on Youtube
http://www.youtube.com/The365AppChallenge
This app includes:
~ Three Cooking Timers that can all run simultaneously
~ A Stopwatch
~ An Internet Browser to surf the web while keeping an eye on your timers
~ Timers run for up to 9 hours
Never burn a tray of muffins again!