AT&T iPhone 4 Mobile Hotspot Means Giving Up Unlimited 3G for Some. Is it Worth It? It Might be for Some People

Apple’s iOS 4.3 upgrade yesterday gave AT&T’s iPhone the ability to be a mobile hotspot for WiFi enabled devices like notebooks, netbooks, and even Apple’s own WiFi-only iPad. However, you can’t get something for nothing. And, if you currently are grandfathered into AT&T’s unlimited 3G data plan, you will defiitely lose something by adding a hotspot plan to an iPhone 4. AT&T’s own support forums provides an interesting discussion on this topic.