Official Google Blog: Google Chrome now live
Even if Google Chrome itself isn't used by everyone on the web, as long as it makes the web better we've achieved our goal.
UPDATE: Matt Cutts just published a post in which I found several confirms on my clues.
And since everything in Google Chrome is completely open-source, if we come up with a good technology such as V8, which is a blazing-fast, from-the-ground-up implementation of a JavaScript virtual machine, Firefox or anyone else is welcome to yoink it and use it themselves. It may be that innovations from Google Chrome are quickly folded into other browsers. If so, that’s great! That means that people will enjoy a faster, safer, more stable experience on the web.
They are especially proud of the JavaScript machine they built (called V8) and hope to be copied by other browsers. In his article Matt Cutts also explains what is Google's return.
If people like and use the web more, that’s eventually good for Google because they will do more searches. Therefore it’s in Google’s interests to make the web better, more accessible and more useful.
