Photo by Kai Hendry.
Hopefully you'll never need to use one of them, but a few minutes of setup can help you track your phone if the unthinkable happens.
Seek Droid (Android)
Seek Droid is a simple, $0.99 utility to help you find your lost Android device. The app lets you find you device and track it on a Google map, remotely lock it, wipe it, and even see if anyone's picked it up and made calls from it. Additionally, Seek Droid allows you to sound the alarm or send a message to the phone to ask whoever has it to return it, and it can be hidden from the app list so someone can't just uninstall it. If you lose your device, just visit the Seek Droid site and manage the rest from a browser.
Find My iPhone (iOS)
Find My iPhone is a free utility from Apple that will help you find a lost iPhone, iPad or 4th generation iPod Touch, as long as iOS 3.1.3 or higher is running. The app used to be part of MobileMe, but Apple made the utility free, and when activated you can see your iOS device on a map, send a message or an alert to it, remotely lock or set a passcode to lock your phone, and remotely wipe it if you don't think you'll get it back.
Where's My Droid (Android)
Where's My Droid is a free utility that makes it easy to find a lost Android phone. The utility has one mode where you can use it to search for a lost phone that you know is somewhere in your home, and another mode where you can find your phone if it's been lost or stolen. The former will turn up the ringer and let it ring for a few minutes to help you find it. The latter will display the phone on a map with its current position via GPS. You can also send an SMS to the phone via email to be displayed on the phone's screen with contact information and how you can be reached.
Prey is an anti-theft and tracking service that's free for up to four devices, and supports Android phones as well as Windows, Mac, and Linux devices. Simply install the agent in the background, and if something happens to your device, you can report your device missing by sending a text message with an activation phrase (the default is "GO PREY") to your Android phone. When it's reported missing, it will automatically send periodic updates to Prey with the device's location, attempt to connect to nearby open wireless networks to send its location that way, and if you want, will sound an alarm, display an alert on the phone's display, and lock itself. Pay for the service (between $US5/month and $US399/month depending on the number of devices you want to track,) and you can track more devices and get more frequent updates.
Lookout is free, and supports Android phones, BlackBerry phones, and Windows Mobile devices. If your device goes missing, Lookout will locate it, back it up wirelessly, and then wipe it so no one else gets their hands on your data. You'll need to have Lookout installed and running on your phone so you can get through to it when your phone goes missing, but once you tell it the phone is missing, you can manage everything else through a web browser. Lookout is also a personal security utility, and includes safe browsing, anti-spyware, and the ability to examine app permissions in the premium version of the Android app ($US2.99/mo or $US29.99/year.)
Honorable mentions this week go out to Plan B for Android, which can locate your stolen or lost Android phone without you having to install and set it up beforehand. The app an be push-installed via the Android Market, and once installed it starts sending your phone's location automatically. Also highly recommended is iLocalis, a location-tracking tool for jailbroken iPhones. iLocalis can make phone calls and send SMS messages from your iPhone even if it's been stolen, and even if the SIM has been changed.
Did we miss your favourite? Have something to say about one of the contenders? Share your thoughts in the comments below.