One thing that both Google and Apple share is that almost the instant that they announce a new product, the public loves it. That's partly because they tend to deliver winning products, but they don't always do so. Google has shuttered a number of projects from its labs, and its productivity applications are popular, but haven't come close to toppling Microsoft Office. And remember the Apple Newton? I barely do either.
For these reasons, and because an operating system is a complex thing to build and gather support for, it makes sense to scrutinize Google's actual chances of delivering a hit with it's newly announced Chrome OS. Here are some things that will work in Google's favor, and some that will not.