Wondering if anyone has tried something. My daughter uses my old iPhone as a iPod with no SIM chip in it. However, I would really like to put a chip in there in case she loses it, so I can use Find My iPhone (it's almost happened once before). However, I do not want her to have any calling/texting abilities (she's too young for that). And 200 MB would be more than sufficient for only needing to turn on Find My iPhone every once in a great while. So, here's what I'm wondering. Can I set up my cellular iPad 3 with a chip, set up the 200 MB free data on Tmobile, and then take the chip out, and put it into her iPhone? Will that work? Will their network recognize that it's no longer in an iPad, but in an iPhone? Will it shut it off? I will likely give it a try soon, but just wondering if anyone has already tried it, and can tell me "Yes it worked" or "No, it doesn't. Don't waste your time." Thanks in advance!