If I understand right: instead of having to worry about calling a REST API for a back-end data store I can just have JS objects persist automatically and synchr

If I understand right: instead of having to worry about calling a REST API for a back-end data store I can just have JS objects persist automatically and synchronize between clients. Dropbox for JS objects. If I've got that right, I think this is totally awesome for front-end web devs and the most exciting backend-as-a-service out there.