T-Mobile has started rolling out Android 4.1.1 Jelly Bean update for its HTC One S. The sizable, 675MB-heavy file will take some time to download so make sure you’re doing it on a fast Wi-Fi hotspot and with your battery fully charged. I would expect the whole process to take some half an hour after which you’ll get such goodies as Google Now, cooler (and actionable) push notifications and Project Butter improvements (to make things run faster). In addition, HTC has most likely included a number of bug fixes in this release as well as updates to some of the apps that come preloaded with the phone. The change log isn’t released and at this point we can only speculate about all the tweaks and new capabilities included in the package. Do let us know when you notice something cool. Thanks.