If you wanted to see the full spectrum of cloud choices that are coming to market today you only have to look at these two efforts as they are starting to evolve. They represent the extremes. And ironically both held analyst events this week.
OpenStack is clearly an effort by a vendor (Rackspace) to launch a community to help advance technology and drive innovation around a framework that multiple vendors can use to bring myriad cloud services to market and deliver differentiated values. Whereas Oracle, who gave analysts a brief look inside its public cloud efforts this week, is taking a completely closed and self-built approach that looks to fulfill all cloud values from top to bottom.