[jimbokun]

"List – A special value that can contain other values, though not other lists."

https://www.dropbox.com/developers/datastore/tutorial/ios#re...

Seems like a very significant limitation. No mechanism for storing hierarchical data structures. For example, this is certainly not capable of storing arbitrary JSON data as a Record.

[est]

There's also limit on Postgres hstore and arrays. No nested sturcture.