Hi, Paul -

From what I've seen, they've released the X-29, Beet Gondola, and AAR 1937 box car in a small number of schemes so far.

There's a whole slew of models announced in their "Coming Soon" section:

http://www.imrcmodels.com/newshocomingsoon.html

As far as I know, these are all available only as RTR models.

Undec kits are still available from Red Caboose.

Randy Hammill
http://newbritainstation.com