Interesting though it appears to be a straightforward server/client application so not sure why it's called distributed. That said I'm confused about what Objective-S is even after reading the about page (http://objective.st/About).
The language on the website seems to be targeted to an audience with knowledge of a subset of languages. Instead it would help if it talked about the problem it seems to solve for a regular "general purpose" programmer.
Doesn't help that the author comes off as super defensive.
Is it technically correct to call any app that writes to S3 a "distributed system"? It doesn't seem like distributed system in the "distributed computing" sense: https://en.wikipedia.org/wiki/Distributed_computing