I haven't checked out CP1 yet but I read over Scott's release of it and I seem to recall that the code was generated by T4. I suppose you could always mod that, but I would suspect that they will provide overloads in CP2.
Edit: The source is always available and thus you could just mod the method, change the T4 generator, and you'll be good to go. Also put in a ticket or request (somehow) for that mod so it gets worked into the next version.