Yeah, this is a pretty amazing offering. Wish they'd announced it *before* I just got my 5S from AT&T, as I probably would have switched just for that. Being able to use a smartphone with data roaming enabled when traveling is very liberating...

(Apple used to have the old "unlimited data anywhere in the world, pretty much" AT&T data plan, which was $20/month extra, but unsurprisingly it was never promoted, and didn't work with tethering. I picked up tethering and dropped that plan, then they stopped offering it. Grrrr).