iVerse, which provides the platform for the Comics+, IDW, and Archie iPad apps, has added another platform with the announcement that it has made Nook Color apps for six graphic novels: Dead Space: Salvage, Star Trek: The Official Movie Adaptation, and Parker: The Hunter from IDW, and Archie Marries..., The Archies and Josie and the Pussycats, and Archie All-Stars: Vol. 1 – Veronica’s Passport from Archie Comics.

Just like Graphicly, which announced its own set of Nook Color apps earlier this week, iVerse is releasing each graphic novel as a single app. Nook Color apps don't seem to allow for in-app buying (I can't check this as I don't have an actual Nook), but this also fits the basic idea of the Nook, which is designed to be an e-reader first and foremost. Single-book apps, rather than generic comics apps, make more sense in the Nook ecosystem, as does the notion of buying a complete graphic novel rather than a series of single-issue comics.

What's next? With two of the three major digital comics publishers making Nook Color apps, can comiXology be far behind? We checked in with comiXology CEO David Steinberger, who gave us something that sounded like a definite "maybe":

We don't pre-announce our plans, but we've stated that we'll be on every platform that comics look great on and has a good market size. The nook may fit that requirement.

It's not clear how the apps differ from the graphic novels already available through the Nook Store, except perhaps to expand the offerings. iOS apps started as single-issue apps as well, so maybe in-app buying is in the future.