so my 7yr old has the Charge now. yesterday, while out with his little sister and mommy, he accidentally left it outside. they searched for awhile before asking some skateboarding kids, and one of them returned it to him.
the good news is that I had the lookout (free app on the market) account setup. the bad news is that the only way that it would produced a sound is if the phone had a wifi connection. but I suppose once the kid connected it to a wifi source, then I would be able to locate/scream/lock/etc....
but even if you did not have the app installed, I think you can still it install it after the fact.
so just a tip for y'all.....
Primary Device: Motorola Razr M (XT907)
ROM: AOSP KitKat 4.4
Recovery: TWRP 18.104.22.168
Previous Device: Samsung Droid Charge (SCH i510)
ROM: Tweaked Lite 1.0
Kernel: Stock FP8