On release of iCloud and iOS 5, Apple added features to help customers recover lost or misplaced iPads and iPhones. If there is a remote possibility that you may need to recover your beloved iOS brethren at some point in the future, use the following instructions or consult the screenshots for an example illustrating how I was able to locate a “lost” iPad.
To use this helpful feature, first ensure that Find my Phone or Find my iPad is enabled. Toggle the switch ON, located under the iCloud category in Settings. If this category is not found in Settings you will need to upgrade to iOS 5 or higher. During the upgrade ensure to properly register an iCloud account, as you must have a working account to use the Find my iPhone/iPad feature set. Consult this post on how to determine your iOS version.
If locating a missing iPad or iPhone there are two options to choose from: The first is using another iOS device to locate a missing iPad/iPhone with the Find my iPhone application. The Find my iPhone App is found here on the App store.
The second option is using another Mac or PC to browse to the iCloud website, where the Find my iPhone feature is available as an option. Please keep in mind that the missing iPad or iPhone must be registered with an iCloud account and have the Find my iPhone or iPad setting switch toggled on. The iCloud page URL is www.iCloud.com.
Regardless of method chosen, and upon locating your missing device(s), the Remote Lock and Remote Wipe options will be available. I initially choose the Remote Lock option so that a numeric passcode must be entered before the device can be used. Remote Wipe on the other hand is generally considered a last resort because the protection of data instead of recovery of the device is the higher priority. Consult the screenshots above for instructions on locating a lost iPad, locking remotely with a passcode, and how the passcode was turned off after the iPad was recovered.