Ted:

One more excellent point you made that I forgot to confirm:  SequelSphere
<http://www.sequelsphere.com/>does allow users to write their own
persistence layer.  It also allows fairly simple and straight-forward
integration with all backend datastores (relationally or not) through the
use of JSON.  That is, the database can easily import tables and their data
from JSON objects, and it can export data as JSON objects (from a result of
a SQL query).

There are also low-level SequelSphere APIs (as-of yet undocumented) for
allowing other client-side classes or storage mechanisms to be tables that
participate in queries.  As such, many of the RIA frameworks that provide
their own persistence layers could actually have their data queried via
SQL.  SequelSphere is in the process over the next several months of
creating some of these "connectors" to allow close bindings between RIA
frameworks.

Anyways, this isn't strictly Node.js stuff, so I'll shutup about it.

On this forum, I'm much more interested in how SequelSphere could be used
effectively on Node.js.  Since no "native" code is required, would it allow
cloud-based databases to be easier to migrate and propogate?  

Please provide any comments or ideas you have...

Thanks,

john...