Meaningless version numbering
It used to be that you'd change the major version number to indicate significant changes or a major improvement over the old version. It seems more and more these days Google and others are doing it purely for marketing.
Google's marketing department;
"We've decided to implement some changes in how we increase our major version numbering. We will increase the version number if any of these conditions are met:
* The sun has risen this morning
* Is it a full moon tonight? If so major version change! If not... major version change!
* Are we still behind MSIE in version numbering? Increase the version number!
* Did any of the other browser makers release a nightly, beta, release candidate or a new release? Major version change!
* Is our marketing department full of morons? Major version change!"
And on and on.. Chrome still isn't attractive as a browser (to me at least) its addon system is pretty crappy and the bookmarks system is woeful. Never mind numerous little things like googleupdater etc.