Are people directly exposing Couchbase/CouchDB at the frontend? A lot of people poo-pooed that idea (NEVER EXPOSE DB TO THE INTARWEBS!), which was the neatest idea, no matter how dangerous, when I first heard of it a few years ago. Are people doing this?
Thanks for your mobile SDKs. I wanted to learn Erlang for CouchDB, and I saw your mobile clients and thought that, and PouchDB, would make for a mean confluence of rapid desktop web and mobile app development.
It's been a long haul. In my role as an Apache volunteer I added the CouchApp capabilities into CouchDB (thanks Damien and folks for tolerating me!). After that we started a company that eventually merged with another NoSQL company to become Couchbase.
Our technology is inspired by Apache CouchDB (and in some cases compatible with it) but it is all green stack and open source.
Couchbase Server is for when you have a ton of traffic (or spiky traffic) that you can't afford to slow down. We power mission critical apps for use cases like airline booking, market making, social gaming, e-commerce, and CMS. http://www.couchbase.com/case-studies
Couchbase Mobile is a parallel effort creating peer-to-peer capable native mobile (and other edge compute) device embedded database with network aware background sync including conflict management. IBM Cloudant also uses our model and interops with our client libraries (but our Sync Gateway has an application API I think is more fun).
Mobile: http://developer.couchbase.com/mobile/
It's been out for a year, plenty of early adopters. Bigger names are getting interested. Ryanair just shipped an app using us, which is fun for me to see: https://twitter.com/zgramana/status/581196081637122048
Our iOS Android Windows and Golang database implementations are all open source. http://developer.couchbase.com/mobile/