You know, I was going to answer this.  I even started to list the main reasons 
why I'm currently converting all of my Windows systems to Linux.

Then I returned to my senses.  Microsoft has made it abundantly clear that it 
views competitors as enemies.  Competition is to be smotherd, obliterated, 
discredited, or if all else fails, assimilated.

So why does Microsoft want to know what makes Linux great?  So it can refute 
it, tailoring it's FUD campaigns more carefully?   So it can find other 
tactics like it's support of SCO's lawsuits to impede Linux's strengths? So 
it can engineer it's own software to lock Linux systems out, prevent them 
from succeeding in mixed environments?  

We'd all like to believe that it's so it can target those strengths as ways to 
enhance it's own software, but years track record show that even when 
Microsoft does this, it also does the "take away their air" tactics and is 
ultimately more interested in it's own "triumph" than in the advancement of 
technology.

No, Mr. Surkan, I don't believe you're the kindly uncle who just wants to 
understand us better.  Even if your personal motives are pure, even if the 
infomation you collect is used for good, it will also be picked over by the 
best experts in the world for any scrap that can be used against Linux - and 
ultimately against us.