I think that Web 2.0 will still be around for another 5 years. Although technologies like 3.5G or the 4G iPhone have been launched, I feel that these are just teasers of what is ahead and Steve Jobs or Bill Gates might not have discovered that yet.
Yes, new stuff like Windows 7 and Office 2010 are available and really interesting and fun to use. However, these are just upgrades from the old versions. For Microsoft Surface to be accepted by the masses seems like a pretty big task to do. I believe that Bill Gates needs to read more about Charles Darwin's philosophy about evolution.
Although I'm not much of a fan of Apple products, I admire how Steve Jobs market Apple. He is an awesome marketer. He launches iPad which isn't that fantastic, as a teaser. Then tells the whole world that the iPhone 4G is going to be launched in June in the States!
I think internet has to make slow and steady changes so that everyone can keep up. If not, how are the folks in the deep parts of China going to understand how to use a computer?