Besides providing a lot of "Customer Tool Interaction" this mechanism definitely provides a hope to make tools intelligent based on the data being generated by customer activities.
The Eclipse UDC is very easy to use as it comes in Preference page for eclipse and can be configured directly from there.
The Database location can be specified in many different ways depening on what kind of application one is developing.
Looking fwd to see its usage with a combination of Artificial Intelligence where component learn and evolve by operating on the data gathered from customer activity on each one of them.