Stuff that got its start in MSR ships in products all the time.
Most of it isn't "new products" per se. MSR really isn't in the business of creating new products. MSR's business is to broadly advance technology by solving hard problems and then to work with MS's product groups to get those technologies into customers' hands.
So it's a broad technology investment, not an investment in specific products.
That said, occasionally MSR does incubate a new product. Tablet PC came out of MSR. As did SPOT. A lot of the company's early interactive TV work was also done in MSR. There are a handful of other examples, and we have a couple of other incubation projects
in the works that may one day be introduced as new products.