What you're looking for is syncml: https://en.wikipedia.org/wiki/SyncML https://en.wikipedia.org/wiki/SyncML the wikipedia page lists various clients and serve

What you're looking for is syncml: https://en.wikipedia.org/wiki/SyncML https://en.wikipedia.org/wiki/SyncML the wikipedia page lists various clients and servers. On Linux (well, ubuntu at least) sync-ui will sync evolution with a syncml server. After a lot of searching for solutions to use with my n900 I chose memotoo as a provider. There is an preconfigured syncml android client for memotoo.