Where have I seen that color combination across multiple logos for products from a single company? Hum... Oh Yeah, Google.
Lets see the main Google logos have this color scheme, as do the logos for Shopper, Drive, Play, Chrome, Chrome Webstore, iGoogle, Maps, Picasa, Offers, Wallet, Street VIew, Google TV, Google Apps Lookup, Google TV Remote, Google Politics and Elections, Google ventures, Google Science Fair, Google Developers, Google Creative Sandbox, Google Travel, Nexus, Big Tent, Research at Google, Currents (the old logo), and a bunch f others that I'm sure I'm forgetting. There are, of course, dozens of other Google products whose logos don't share this color scheme, but my point is that it is used pervasively within Google's many products and in a way it has come to identify that company. Microsoft has a neat new Logo and i realize that they've been using this color combination since before Google existed. However, Google has really made this color scheme instantly recognizable with it and its products, and I doubt that is an association Microsoft was going for.