I (Mom) on a Droid (last year's version) need to track my son on his LG Touch. Is there any family tracking software that is compatible w/both phones? I tried the Verizon Family Locator app, but the salesperson in a Verizon store concluded that my 'older' Droid does not support this app. I'm worried that my Droid is too old for family locator software. Do I really need to upgrade to the latest Droid or an iPhone for this functionality? Also, does such an app support a cross-platform pair of phones? Make sense? Many thanks.