in memory data bases can be very useful! they allow you to slice and dice and aggregate data without you having to write the logic to do that yourself.

I'm guessing this is in memory, the main purpose would be for you to use sqlite in the browser since node already has a sqlite driver, as such, IO blocking is not an issue because there is no IO, it can block the same way that cpu intensive code can block however

I think it's memory for now, but I'm hoping for an IndexedDB backend as a polyfill for WebSQL. As for non-blocking... that's what Web Workers are for :)

Actually, I'd love to be able to write SELECT queries in Javascript that were identical to the queries that I write on the server. Yeah, the data comes from an AJAX-JSON call, but then I deal with it exactly the same. I'd love that.

great for teaching SQL, perhaps? super easy example queries, etc.