I have always seen over 3Mbps in my Teletalk(at least in my office and home), and that 3G. 3.5G has the capacity to deliver upto 21Mbps. But whats the point of making it 3.5 or 3.9 or 3.99G when they still provide that lower speed (people reporting they get only 1Mbps in Robi Sheirom 3.5G, in their WIC). And try to think what they will charge for 21Mbps in Bangladesh. Take a guess!