A tangentially related question: I also need to get a second phone in addition to the free-ish iPhone.

I'd like to get a ruggedized phone because my wife seems to break pretty much everything electronic that she touches. I'm also trying to keep it as inexpensive as possible. So far, my best option seems to be an unlocked Motorola Defy+ for $129 on Amazon and then upgrade it to Jelly Bean by installing CM10. I've got absolutely no experience installing modded firmware on a phone, but the write-ups online don't look difficult.

Any problems with this? Any better deals or better supported phones I should consider?