ooseven, you need to get your facts straight.
1. Microsoft has WAY more money than Sony. Sony has about 60 billion dollars, and Microsoft has about 500 billion dollars. When you get up to that much money, the differences become less important, but they are still there. If Microsoft and Sony both tried to buy out Square, Microsoft would easily win.
2. Sony does not own the most shares of Square. There is another share holder that owns a little more than Sony. Sony owns 19%, and the other company owns somewhere between 20-30%.
3. How would you know if Square has plans to jump ship or not?
4. Sony and Square had a mutual partnership even before the movie. Sony actually gave Square a lot of money for that movie to be made -- probably hoping to be paid back the original amount that they gave Square plus some of the profits.
I will agree with you on your overall idea though -- that Square isn\'t going anywhere for a long time to come. Sony and Square depend on each other and have done a lot for each other. Square even said that they were free to develope for other systems, but there only interest was the PS2 at the time (a couple months ago when Sony bought some of Square). So I really doubt Square goes multiplatform this generation (meaning, they won\'t go multiplatform until at least the PS3/Xbox2/NGC2 comes out, if then).