HBO Go for Xbox 360 finally launched this morning, but don't expect to use it if you're a Comcast or Time Warner Cable customer. Unhappy posters at Major Nelson and disgruntled Twitter users have pointed out that Comcast / Xfinity subscribers aren't able to get HBO Go working on the Xbox 360, and a quick look at Microsoft's official site confirms that Comcast as well as TWC are not among the providers offering HBO Go access. We've tried getting a Comcast account working with HBO Go and can confirm it isn't an option.
However, it's worth noting that HBO content is available through Comcast's Xfinity TV iPad and iPhone apps, so it's possible that the forthcoming Xfinity On Demand for Xbox 360 will include HBO as well. That app isn't available yet, so we can't say for sure, but there's a possibility Comcast customers will be able to get HBO programming through Xfinity On Demand. We'll know for sure when that app launches — it's suposed to be coming today. That's small comfort for Time Warner Cable users, who have no hope that this will be fixed today, or anytime in the near future.