Its a warranty replacement frame for my beloved 2010 RIP9. BTW - Niner was great with a replacement on an out of warranty frame, even if the bike shop was a bit underwhelming - partially my fault for going to the closest shop rather than the better one a few minutes further away. I did have to buy a new headset, front derailleur, stem and hub conversion kit, so it wasn't exactly free.
Its better than the 2010 in every way I can think of. The only downside is I haven't gotten to ride it enough! I hope to resolve that problem.
there's more thoughts and a build entry on my blog if you're interested.