How Long is so easy to use, all you need to do is pick a date, pick a time, name the event, then tap done on the settings panel. It will count down in green or count up in red automatically. You can turn the phone to landscape mode to see the full amount of time remaining, or portrait mode for most significant units.
How Long is built for Cupcake (Android Version 1.5) but will work with limited functionality on earlier versions.
Feedback
If you like this, or even if you don't, send your feedback to support@johnnye.net. If you want a Google Android app built for you, get in touch!