We're not sure how it happened (ok, we have an idea) but Microsoft went from confident incumbent to the scrappy tech underdog in the last few years. We're not talking marketshare here, but mindshare. Through it all the Xbox 360 has remained a constant fave and Windows 7 has certainly helped the company rekindle consumer enthusiasm as did the release of the Zune HD. Now, if we're reading our tea leaves correctly, then Microsoft's got a whole lot more in store for 2010. Redmond's already