on dns-o-matic they say dd-wrt supports it, so maybe we can rip it from the sources and magicly put it in the oleg sources
http://www.dnsomatic.com/wiki/dd-wrt
but I have this weird feelin that olegs firmware also might be able to do this... since you can specify the server:
DYNDNS Server: updates.dnsomatic.com
I'm sure this must be a value somewhere in olges

I already like the D release, so I can't wait till the full one, keep it up