Hi,
I haven't tested it myself, but I know some members are using PlayMaker and Wii U, but not sure to what extends thsi sdk is supported.
I have been in contact with Nintendo, but they don't seem to realize that there is a potential for them to get more devkit purchased if PlayMaker is properly supported. Maybe you should contact your nintendo account manager to express this and to come back to me to arrange things. Cause I can't be spending so much money on a devkit just for portabiltiy check where I know I am not going to produce any projects for real.
So make yourself heard to nintendo that you would like PlayMaker to be supported. I would commit into supporting this platform if I can get a mutual collaboration going on with Nintendo.
Bye,
Jean