Must a web connection must be established in order for these to work?
I'm no expert but I'm pretty sure that those 'lost my phone' apps don't work.
Yes, the Nexus has GPS. Though this is true, it still needs to send a signal so the tracking website could be notifies of your tablet's location. Unless the thief unlocks your tablet and connects to a WiFi network, I believe you permanently lost it.
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Worried more about the remembered information stored on the tablet.
I'd think remote wipe would need a connection as well.
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Does encrypt mean you have to enter a password every time out use a Google service?
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