Sorry if this is old, but my co-worker just fowarded me this site:

http://www.jandssafeguard.com/safeguard.html

They have a new 4 channel setup which may be just what we need for effective control of our cars, Yet they still have the Rx7 listed under the 1-2 channel model

I emailed them to ask what's up so we'll see what they say.

-Chris