I'm not a big fan of bullpup designs because changing mags tends to be far more difficult than with a conventional rifle but I thought I'd post a link to some info on the new Kel-Tec RFB 7.62NATO bullpup rifle anyway.
Not bad looking but I'm not really sure who the target market is except paranoid gun hoarders who can't find a time-tested rifle with better ergonomics for sale who simply HAVE to buy a new gun to dunk in cosmoline, seal in a PVC pipe and bury in the back 40. If you watch the video on the linked page, the recoil is just as violent as one would expect from a lightweight, compact 7.62 NATO firearm. Frankly, given the choice of buying a completely new and relatively untested platform or simply dropping an M-14 or M1A into one of the SRSS bulldog stocks, I think I'd opt for the latter.
And, yes, they come in the usual colors desired unlike the prototype above in the picture above... It's actually 2" shorter than the Kel-Tec (when using a SOCOM rifle) and, well, it's certainly got more than a little battlefield cred as far as the operating mechanism goes. If you have a need to run around in cramped, urban areas and have the ability to shoot through brick walls with impunity, this may be the solution for you!