[m_mueller]

One thing that I don't see solved with PG + ElasticSearch is replication of data subsets to mobile devices. How would you solve that with this stack?

[anentropic]

Application code? Send the data down as JSON?

[m_mueller]

I mean for offline usage. Just using JSON basically means you ll have to reimplement all the database behavior for the offline client. This is where TouchDB comes in handy, which is the reason I'm using CouchDB - you can basically run most the server on the mobile device.