Android: Where's My Droid can help you locate your phone whether you lost it in the couch cushions, left it at a coffee shop or it's going on a ride across town to call some Nigerian princes.
Where's My Droid (WMD) is a dual-function locator for your Android phone. If you've only misplaced your phone in your immediate surroundings you can send a text message to your phone and WMD will increase the volume of your ringer to 100 per cent and then ring for half a minute, one minute or five minutes to help you locate it by ear.
If your Android phone is out of earshot you can also text your phone and instead receive the GPS coordinates and a link to Google Maps displaying the location of your phone. The one downside to the GPS trick is that it requires your phone already have GPS enabled. If you want to use the GPS locator in Where's My Droid you'll need to leave your GPS on all the time.
The default text messages the application listens for are "Wheres my droid" and "GPS my droid", you can change them to something more innocuous like "Where you at Zebediah Balthazar?"
Visit the author's site at the link below to grab a copy for your Android phone or sound off in the comments with your favourite Android application.