Datastore is very integral to Grandeur Cloud. This was required to be implemented as soon as possible and now it's finally up.
It works as a front-end NOSQL document database. Developers can insert, delete, and get their data directly from the front-end of their apps using the datastore API. But not just limited to that, they can create query pipelines to pass output of one query to input of the next one. This feature can be extremely powerful at times. A developer can get some documents based on a search query, sort the data in ascending order of a certain field, multiply two fields to form a third field, mask the multiplied fields out, and then output the result.
A very basic usage of datastore could be just for storing logs from devices for extracting analytics from the data later.
We still have to work a lot on the cloud analytics though.