Koush’s Klaxon is, to date, one of the few, if not the only application to take full advantage of HTC Touch Diamond’s and HTC Touch Pro’s G sensor (motion sensor) and Light sensor at the same time. Klaxon is an alarm clock, with added specific functionality. Concerning the alarm clock, there is nothing out of the ordinary; it supports multiple alarms with the classic possibility of snoozing and recurrence.
What makes this application special though is the ability to interact with the application, through motion or light. The user has the options to shake the phone, flip it over or turn it towards light; Klaxon has integrated feature for customization of interactivities. Users are able to associate commands (snooze, turn off) to gestures while the device feeds back by default after successful command (vibrate once for Snooze mode, vibrate twice if alarm is turned off).
Example: Wake up alarm at 6:00 AM > Flip over to snooze 10 minutes > Snooze alarm at 6:10 AM > Shake to turn alarm off!
Klaxon is a freeware and currently at version 188.8.131.52, but updates are continuously made!