In short, it wouldn't surprise me at all if they are trying to acheive an "online world domination". Think about it for a moment.
They are trying to control java by attempting to take out sun, they already won the browser war, they are trying to become the largest ISP on this planet (msn), windows is basically being used by 97% of the computer industry, and therefore, IE took out Netscape easily, and they are trying to win the console war now.

I could make the list way much longer, but there's no need to. You can clearly see what they are attempting to do anyway.

"Stephen Wolfram is the creator of Mathematica and is widely regarded as the most important innovator in scientific and technical computing today." - Stephen Wolfram