Let me start...
1. We should not need to use third party programs like Recycle. All we should do is drag and drop loops into RMX interface. People with the Apple's loop utility don't need Recycle. Why should RMX? We should be able to select as many files as we want and just drag them straight into RMS interface. Then Bingo! everything is ready. What a convenient.
2. RMX can be a complete drum machine. Therefore, we should be able to drag and drop as many single files into it like Battery and all of the other drum machines: double or use as many layers as you like.
3. Midi standard is 16 channels even if we don't use them all.
Finally, Spectrasonics should process all files through a 1073 and a distressor. ( just kidding), but it would be nice though.
RMX is a great piece of work indeed and it's very stable.
What is your wish list for RMX?