I wouldn't say sproutcore specializes in pushing data to the client, it really is a 'full stack' client side framework. That said, this is one thing that sprout

I wouldn't say sproutcore specializes in pushing data to the client, it really is a 'full stack' client side framework. That said, this is one thing that sproutcore does do quite well, the interface for hooking up to JSON datasources is very simple and effective (particularly useful are cascading data sources, which they've recent added and really cleans up the code where there used to be huge if-else if blocks on queries inside your data source file).