Appolicious – Skyfire Web Browser was officially released in the iTunes App Store on Wednesday, but was pulled five hours after its debut because it was “sold out.” No, an app can’t really sell out, but Skyfire developers said they simply didn’t have the resources to keep up with app demand (Skyfire became the top grossing app during its launch), something I, as a potential user, appreciated them copping to. Skyfire reappeared for purchase late Friday night, but before you drop $3, I think it’s important you know what you’re buying.