I use reason in a live setting. It would be great if Reason had a scrolling lyric page which could be used to cue fellow band members on stage. I would output the mac screen via small lcds to the drummer etc.
Also, I use voc align in another daw. Then reimport back into Reason. If a rack extension could be added that would truly make my music life easier!
This software rocks. I use it everyday and really appreciate the thought which goes into these products.