Originally Posted by Sandroidfan
I raised the same question on this forum before as I thought Nexus Prime = Droid Prime exclusively for verizon and so this forum is redundant. But now it seems like Samsung Droid Prime goes to Verizon while Nexus Prime goes to other carriers. So it makes to sense to have this forum unless it's back to Nexus Prime = Droid Prime officially.
This is obviously speculation to some extent, but mostly common sense.
The Nexus Prime will be the main version of the phone released globally and possibly on non-Verizon US carriers. (Or it may just be available for purchase without a contract). It will be GSM (the radio standard used by most carriers) and a "pure Google" device. This means Samsung and carriers will not be allowed to customize the software. It will receive future Android OS updates before other phones (including the Droid Prime, probably), and as a likely Android reference device may be supported for longer.
The Droid Prime is the version of the phone that will be released in the USA on Verizon (Droid is a Verizon-only brand). It will be CDMA (the unusual radio standard used by Verizon), possibly LTE and may or may not come with Verizon and/or Samsung customisations to the OS.
In any case, it seems likely from rumours that there will be two versions of the phone, so it makes sense to have two forums.