AT&T’s “4G” message may be a bit convoluted when its Long Term Evolution (LTE) network begins to bear fruit. The company has already branded its HSPA network as “4G”, although the coverage and real world speeds are less than impressive — especially when compared to other HSPA+ networks, like that of T-Mobile. But that hasn’t stopped the nation’s second largest carrier from working on a second 4G network and, thankfully, this one seems to be bringing the downlink goods. Recently, blog GigaOM was treated to a tour of AT&T’s Foundry laboratory in Texas. The site reports seeing “real world speeds” of 28.87Mbps on the downlink and 10.4Mbps on the uplink. Much better than the paltry 5Mbps down and 1Mbps up being pumped out by the company’s current 4G, HSPA network. AT&T plans to launch its LTE network in several markets by the end of this year and hopefully… these speeds hold up.