@Nokiapoweruser 720p, 5″
— Alan Mendelevich (@ailon) January 14, 2015
So, may be Lumia 1072, Lumia 1075 and Lumia 1077 are same device and since both RM-1072 and RM-1077 have been approved for Indonesia market, one of them may be a Dual-Sim device.
The 5-inch screen and 720p display makes it a really interesting device, as we already have Lumia 830 with similar display specs out in the market. We will let you know, if we come to know more about RM-1072 / RM-1075 / RM-1077.