Question for the TK-102 users.
Could I use a Sim card (AT&T) from a my phone (iPhone 4s) that I rarely use and put it in the TK-102, then use my wife's phone to send codes and receive GPS coordinates if its lost, then put it(Sim card) back in my iPhone ?
This would save me $ and having to buy a New Sim card and fees.

For $15 + tax, no monthly charges, you can have 200 MB per month for life from T-Mobile.  It gives 200 MB per month and then shuts off after that.  Moving SIM card should work but it puts a fair bit of wear on something not built to be removed and inserted that often.

http://find.t-mobile.com/control ... e%2Bmatchallpartial