But I got my AirVoice sim card and cut it down to size with scissors to fit an iPhone 4! Didn't work until I did some delicate surgery with a tiny strip of plastic, but it was so exciting to see my service light up on the second try! Cuts my phone bill neatly in half and seems to have better service than T-Ignoble. ($30 unlimited plan, I'm still a junior Mustachian but might cut back on texting someday.) Just had to share my excitement! I've been digging into MMM for just a couple of weeks now and this is my first real budget chopper other than cheaper groceries. Here's to a growing 'stash.