We stumbled upon a nice official photo of an upcoming dual SIM phone by Samsung that leaked online. The new dual SIM phone seems to be a successor of the D880 DuoS and is dubbed Samsung B5702.
Swapping the "D" model designation (as in DuoS) Samsung have gone for using "B" (as in Business) in the naming of the rumored Samsung B5702.
Unfortunately, specs-wise we don't know much. We guess the B5702 will have a 256K color QVGA display, but that's not confirmed at this stage. There also seem to be some clever info LED system above the display to let you know which SIM card you are currently using.
We really hope the new B5702 has a slimmer waistline than the original Samsung D880 DuoS, which stood at a good 18.9mm of thickness.
Samsung was the first major manufacturer to start making dual SIM phones. This is their fifth dual SIM mobile phone. Their previous attempts at the matter included Samsung D880 Duos, Samsung D780, Samsung D980, as well as Samsung S9402 Duos.
Recently LG also jumped on the dual SIM bandwagon with their LG KS660.
Unfortunately, most of these devices are targeted at either Eastern Europe or Asia.