I am very interested in Compute Modules, but have a few concerns:

The main press release (linked above) for Compute Modules states that these systems are "primarily designed for those who are going to create their own PCB". Does this mean it is possible to buy, say, 10 of them, and "cluster" them on their own PCB such that their resources are pooled (processors, memory, etc.)?

If not, why?

If so, has anyone attempted to do this, as a hobby project? What would be involved with synchronizing the processors and clustering the memory into one big heap/glob of RAM? I'd like to see if there is a way to make an enterprise-grade server from RPi components, and this compute module seems to be the way to go.