Actually, you would need an unlocked iPhone 4s to use Red Pocket mobile.I'm on H20 wireless on my iPhone 4S and it will work the same. Activate the sim before inserting it and then once you insert the sim, it should work right away. No unlocked iPhone needed because it is on At&T. Now that H20 has once again lowered their data plans from 2GB to 1GB, I'm jumping to Red Pocket!!! Heard they are WAY better in Customer service & plans.
Great idea H2O drop the 2GB to 1 GB jeez this guys are about to fumble the ball right at the end zone to win the game . The only things i heard about Red Pocket is that their service is not tailored for any users that has family in south america or the caribbean. Every user i talk too keep saying use Straight talk but this is more confusing etc etc etc. this is sadI just bought a Red Pocket SIM Card on Amazon. Switching from h2O to RedPocket as soon as I can. H2O is now making the $60 only 1GB of data.