It is always nice to hear when Apple is doing well. I don't think Apple needs to make ITMS .wma compatible. They might want to make the iPod and mini .wma compatible. I am not an audio expert, but if .wma is so inferior to ACC, then let the people decide for themselves.
Either would involve Apple paying licensing fees to Microsoft. People keep acting like WMA is free or something. It's not. It's a proprietary Microsoft format. If WMA is so great and has liberal fair use then it should be trivial to burn a Redbook CD and rerip to whatever format you like. Who cares about the recompression. If you cared that much about the audio you'd have purchased the CD right?