I was just about to post and ask if there were plans for a Linux port, when I noticed it had been recently discussed.  One thing I'd like to add though is that DMC++ is so damn fast compared to g++ that it would be really nice to use when developing code, even with the compatibility issue.

Another thing: when DMC++ gets more conformant, it could use gcc's libstdc++ library and then be more complete.  If that could be achieved even just on windows it would be pretty cool.  I could see recommending it to all the newbies who ask about learning C or C++, and where to get a compiler (get that a lot).