Hello,
This isn't really new, I have been considering to release games for the MSX for a few years now, but for a reason or another that never happened... until now.
Well, let’s say I am strongly considering the idea again, as I have some ColecoVision hardware on the makings that would benefit from cross platform development.
I have been involved with ColecoVision development for a while now, and I was able to release some arcade ports during that time. My plans are to release those same games for the MSX2 (obviously with updated graphics and sound), in cartridge format. The first such game would be Pac-Man Collection, which includes the original Pac-Man arcade game, as well as Ms Pac-Man and Pac-Man Plus.
In other to determine if such idea is viable or not, I would need to know the size of the MSX market for new games. So I would like to ask you guys to send me an email if you would be interested in such games. Price will probably be the same as my ColecoVision games, US$40. That includes the game cartridge and professionally printed box and manual. Box would be my new model book-style (gatefold, opens like a book).
Pac-Man Collection would be a MSX2 game, with several advantages over my ColecoVision version (which uses the TMS9928). The game code came straight from the arcade, so the game plays just like you were playing it on MAME. Timings are arcade perfect. Also, with the MSX2 version you have the option to use a Konami cartridge with SCC on slot 2 and get 100% arcade perfect sound. Otherwise you get PSG sound, which is close but cannot reproduce the exact arcade timbres. Oh, and btw, Wolf created the opening song for Pac-Man Collection, based on the 80s hit Pac-Man Fever... 
After that next game would be Space Invaders Collection or Donkey Kong. Then Arkanoid and Pengo, with possibly more to come in the future if sales are ok. Even though some of those games are already available for the MSX they are all MSX1 games.
Anyway, you can find some info about Pac-Man Collection for the MSX here:
http://opcodegames.com/pacmancol_msx.htm
And you can play a old demo version (which didn't include sound, didn't let you play beyond level 2 and included only the compressed screen mode (final version should have a full screen mode with vertical scroll)).
http://www.opcodegames.com/games/pacman/PAC_MSX.rom
Video showing an early build of Donkey Kong for the ColecoVision (no sound):
http://www.youtube.com/watch?v=TFxKEVaDwIE
Arkanoid (ColecoVision), no sound, not playable, missing lots of stuff:
http://www.youtube.com/watch?v=WI4J28ZjIHc
Something I have planned for the future (this early build is running on a MSX2+)…
http://www.youtube.com/watch?v=Xa4CFRAOD_w
Again, I need a minimum number of people interested because of all the costs involved. I am going to need .a new cartridge PCB with bank switch and save game (based on my ColecoVision MegaCart), and also a new and exclusive cartridge plastic case, complete with embossed logo .on the back, just like my ColecoVision games. We are going to top notch presentation here, guys.
Ok, so if you interested, please contact me: eduardo at opcodegames.com. I will place names in a list and if we can get lets say 80 names or more we would be good to go.
Thanks!

I like both sides!
you haven´t read msx topics from the web in last years too often, haven´t you?