Comcast today launched new plan options for its Xfinity Mobile service. When choosing a monthly data allotment by the GB, customers can now select a 3 GB option that's $30 (previously $36) or a 10 GB option for $60 (previously $120). As before, the first GB is $12, and any overage is automatically charged at $12/GB. With Xfinity's by-the-GB plans, data rates are reduced after 20 GB or during times of congestion, although video streams in HD (720p) and personal hotspot features operate at full LTE speeds. The company also introduced a new "HD Pass" for its unlimited plans that costs $20/month and lets those customers access HD video as well full data speeds during times of network congestion. The company removed HD streaming from its unlimited plans over a year ago and promised an HD add-on plan by the end of 2018. Xfinity also lets customers with family plans mix and match plan types and change them at any time. For example, one line can be unlimited while two other lines share one 10 GB bucket of data.