I bought one last week in the 9mm Glock 17 setup.  I've already ordered a ton of accessories for it online and they should be here later this week.  When I get everything mounted, I'll post a few pics.  Kel-Tec came out last month with an aluminum Quad Rail forearm for the Sub2K's.  When I get that, everything will mount very easily and look great.  I ordered rubber grips, 4 33 rnd mags, rail mount laser, rail mount light, stock extension, tactical folding handgrip, and a tactical sling for it so far! haha
As soon as I can get an order placed with Kel-Tec, the Quad Rail will be on the way too.  It should look great when it's done.  I took it to the range yesterday for a few rounds and it is VERY accurate.  I was surprised for the price.  It's a great little gun at a great price.  I'm looking forward to getting it dialed in once I get the laser on it.
I'll post back...