I was concerned about the MS hold on the markets for a long time. I'm less so now. They won the wars of the 80's and 90's, and we must not keep fighting them. MS will lose OS and Office market share slowly over time as their monopoly dissipates. They have been regulated, and increasingly compelling open alternatives continue to develop. The appearance of Google was the final element that convinced me that we were not going to live in a tech world controlled by Microsoft.
But now, I am worried about Google. They're similar to MS, and now hold a commanding and growing share of Internet search. Search is important. It defines what we see and perceive on-line. Objectivity of search is important. Google is not objective, and it's becoming increasingly less objective as it seeks to add more content creation units and drive traffic toward them. Privacy is another big concern. Meanwhile, people by and large are still enamored by Google because it makes warm-and-fuzzy AJAX interfaces; they're fighting last decade's battles, not next decade's. I am very concerned about Google.
It is clear to me that we need an effective counterweight to this Google juggarenaut, and we need it soon. MS and Yahoo are both distant thirds in the Internet search market. A MS-Yahoo merger seems to me to be the most effective way to compete with Google, but even that would not be a sure-fire bet. If it works, it will increase competition in Internet Search from one company to two.
And this is all written by me, a confirmed long-time granola-eating, Linux-loving, Mac-using Windows hater! Or put another way, I can't believe I just chose the Gates-halo icon. We need additional icons featuring halos and devil horns for Larry and Sergey.