While browsing somewhere I’ve found Tent.io. It somehow compares to DataStore from Mozilla and remoteStorage, I think.
Are there any concepts inside we could abstract or should we add it to the list of designs to compare next year?
Uh, ok. So they changed their scope to compete with remoteStorage apparently (maybe after reading my comment under their article a while back? ;)).
The problem with these folks is they refuse to cooperate with any other people creating protocols/standards for the exact same field. At least that’s the way it was with their last proposal and what they did with it. 
In any case, yes, would be good to compare the protocols and see how we can benefit from each other.
Cool, thanks!