Thanks to the head start provided by gcr, recently I added the equivalent of geiser's support for images in the REPL, to racket-mode.

As for supporting WXME format files: Although that sounds very cool, I don't think that's within the scope of what I want to attempt for racket-mode (or have time to do) now.

p.s. The video of my demo at RacketCon was posted recently: https://www.youtube.com/watch?v=QWiteH8PARQ&list=LLoI3ip0MG_...

p.p.s. My "30 year old technology" comment was re the previous speaker. I am definitely not begin derogatory about Emacs. :)