We also learned more about the handset when two variants of it visited the FCC. The RM-1066 and RM-1067 are both different versions of the Lumia 1330 that met with the U.S. agency for certification. The former is a single SIM version of the handset, while the latter supports dual SIM cards.
Considering that the device has visited the FCC, and has been put through the GFX Benchmark site, it would appear that it won't be too long before the Lumia 1330 sees the light of day. According to Windows Phone cross promotion network AdDuplex, the Lumia 1330 includes model numbers RM-1062, RM-1063, RM-1064, RM-1065, RM-1066 and RM-1067.