The GT-S5222 Duos will soon be launched by Samsung, although we don't know exactly when. The GT-S5222 Duos is a dual SIM handset but is not a smartphone.
The Samsung GT-S5222 Duos will more than likely be announced at the MWC in February in which features of this handset will include: a 3 inch QVGA touchscreen display, TouchWiz UI, Wi-Fi, Bluetooth 3.0, stereo FM radio, Samsung ChatOn, Opera Mini, 3MP camera, and 1GB of internal memory. The handset, however, will not have 3G connectivity.
Once this GT-S5222 Duos lands at the MWC, we should have a little bit more info to give you. We will keep you posted.