Having trouble keeping track of Samsung's ever-expanding Galaxy line of phones? Prepare to add another flash card to your studying.  Earlier today Samsung took advantage of the CES 2012 stage to announce the expansion of their 4G network and the Samsung Galaxy S Blaze 4G.  This iteration of the ubiquitous Galaxy line is packing a 1.5 GHz dual-core Snapdragon S3 processor, and will pull down data using the carriers theoretical blistering HSPA+ 42.  T-Mobile was playing it coy on a release date, only saying 'later this year."  The magenta monster also announced it has doubled the speed of its 4G HSPA+ network in 12 additional markets, bringing faster HSPA+ 42 to 184 million Americans in 175 markets.  Some of the new cities receiving the new speeds include  Beaumont, TX, Michigan City, IN Naples, FL and more. Who's rocking some 4G?  It looks like HSPA+ is all grown up.