After Google's release of "experimental" binaries for Sprint's Galaxy Nexus variant, Jean-Baptiste Queru (Chief Android Release Engineer) confirmed that the binaries represented not full AOSP support, but the "taking down [of] many hurdles that were preventing [AOSP support]," citing bugs in the network stack as one of the issues yet to be addressed.
Less than one month later, it would appear that those issues have been sorted, as Google today published the toroplus' factory image for the first time. The image, for those who are wondering, carries Android 4.1.1 (build FH05).
So what does this mean? For one thing, it means that four months after Verizon's Galaxy Nexus started getting with the program, Sprint's Galaxy Nexus has caught up. More importantly, though, it means that the full stock image is available for toroplus users to enjoy, whether they want to return to factory state after building and/or flashing their own custom AOSP builds, or just want to take a peek at the factory image for tinkering, development, or plain ogling.
It's also worth noting that "sojua," the Nexus S i9020a has received an updated factory image, bringing it up to Android 4.1.2 (ahead of the sojuk and sojus). To grab the factory images for yourself, just hit the link below.
Source: Google Nexus Images