Other M was fun to play, and I hope that now that they've finally filled all the space between 2 and Fusion, they finally make a sequel to Fusion itself. I just hope Sakamoto is kept far faaaaar away from the story, however. Other M's story, while good in concept, (I have no problem with the Ridley scene and Adam authorization gimmick- although the Ridley scene might have been a bit TOO dramatic, and the lava run was inexcusable) was kind of badly executed at times. it doesn't help Samus English VA was just plain dreadful.
That said, MS Metroid? Well I'm curious if nothing else.