The only dual sim with qwerty keyboard is this: Product Information
The choice of dual sim smartphones is very limited. It is true, that lately a lot of them from Chinais available. But they are different only from the outside, inside is always the same MTK6516 chipset, which is slow and has no 3D acceleration.
Just this week finally the Gigabyte GSmart G1317 started selling. But I'll wait for the little better G1310.
But although these phones are better then all the Chinese clones, they have 2 years old chipset. You won't find any dual sim with Cortex-A8 CPU (1 year old). And there is absolutely no chance for this year's Cortex-A9. But I heard that Yuhua (the manufacturer of the MID mentioned above and also maker of X2, the first Android dual sim) is working on a Cortex-A8 equipped dual sim.