ATT Adds Mobile Hotspots
If they add this to the iPhone, I'll be tempted to give up my grandfathered unlimited plan:
When bundled with AT&T's 2GB Data Pro Plan ($25/month), the mobile hotspot app costs $20 per month and adds 2GB of extra data service. However, the 4GB allotment applies to all devices connected through the hotspot, and an overage charge of $10 per gigabyte applies if the user goes over 4GB.