Next time you leave your iPhone behind in a bar, there’s a free app from Apple that could help you find it.
The Find My iPhone app is now available for download on iTunes but requires a MobileMe account subscription.
It works like this: install the app on your “home base” (someone else’s iPhone, or an iPad, iPod Touch) and in the event that you lose your iPhone or it gets swiped, login to the app via MobileMe.
Once you’re logged in, you can see where your iPhone has strayed as well as lock it down or wipe the data from remote if it has fallen into enemy hands. (NB: Apple notes that lockdown and data removal aren’t available worldwide, but doesn’t state where).
In addition to a MobileMe account, you’ll also need to be running iOS 3.1.3 or later.