If the device becomes lost, users can go to me.com, enter their Apple ID, and the software automatically find the associated iPad (or iPhone). It brings up the device's location on a map, making it a cinch to get directions to wherever the device may have been left. Additionally, Apple offers iPad users the same security features that are available for the iPhone. The iPad can be remotely locked or wiped. It can be made to issue an alert or sound, so it is more easily found. Or it can be set to display a message like "Help, I'm lost!"
As for accuracy, even though I have a Wi-Fi-only version of the iPad, Find My iPad was able to locate it to within about 10 -15 feet. That's pretty impressive. Models that have the 3G/GPS radios on board should see better results than that.
The iPad gains access to Apple's Game Center with iOS 4.2. The Game Center is Apple's social/multi-player gaming platform, and works between all iOS 4.2 devices (iPad, iPhone and iPod Touch). Once signed in with their Apple ID, users can locate friends, pick a game and get the action rolling.
Games are plentiful, and (probably) too easy to download. Users can invite friends to join a game via nickname or email address, as well as see what games they've tackled lately. The leaderboard feature also lets users compare scores and achievements. That can be good or bad, depending on how solid a gamer you are.
From an enterprise perspective, the iOS 4.2 for the iPad doesn't make many dramatic improvements over iOS 3.2.2. The most notable and obvious changes have been made to the email program.
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