Not to let the consumer be baffled by the plethora of Windows 7 versions, HP has made it clear that it would be offering just 3 versions of Windows 7 which would include Professional and Home Editions as-well-as the Starter edition. Starter edition, as usual will be limited in a way that it will allow only 3 applications to be running at any particular instance.
Although the choice of Starter edition will be nice for the netbooks that will be targetted for the young students market, where they do not need a lot of applications to be running concurrently. This way, the OEMs will be able to cut even more costs.