HBO Go has been live on the iTunes App Store and Android Market for just a few short hours, but we've already put it through the paces, poking and prodding on our iPad and iPhone, to see what all the hubbub's about. We're pleased with the hefty amount of video that HBO's offering up here, and the interface is pretty intuitive as well. Still, browsing through the myriad content on the iPad's larger screen is definitely a bit more leisurely than on the iPhone's 3.5-inch counterpart. Both apps sport the same feature set, so searching for content, saving things to watch later, and blasting updates to Facebook and Twitter will work well on whichever device you choose. To make the deal even sweeter, it's free for current subscribers, so there's really no reason to not check it out for yourself