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As we now know the initial offerings of 4G have only been slightly faster than current 3G speeds. What happened to our 100 Mbps wireless pipes? There could be a financial not technical reason for this. Carriers are doing what they can, after spending billions of dollars building out their 3G networks, to balance profits. With their slim margins they will stretch the 3G offerings out as long as possible. For example AT&T will probably delay its launch date as they continue to enhance their 3G network and T-Mobile hasn’t yet announced a 4G offering optimizing their current investments in HSPA+. HSPA+ is an easier roll out than 4G, because it’s overlaid over T-Mobile’s existing 3G footprint. It also gets competitive speeds; its 21Mbps is three times what you’re used to from current 3G technologies. The good news however is that 4G technology is continuing to move forward with Sprint and soon Verizon as the forerunners. Technology that will be what was promised originally… in theory.