All, This isn't as much an AT&T question as a general SIM card question, sorry if it's in the wrong forum. I have three lines with my AT&T family plan, all owned by me. The line my wife uses is eligible for upgrade to the 4S because it's the primary number. The line I use is not eligible. Can I order the iPhone 4S on my wife's upgrade eligibility then activate it for my line when it comes in since they're all on the same account? Thanks!