Looks pretty good from what I've seen. Set up an account for my site, posted a few messages to test how it works and found that everything seems pretty much as I'd expect from a Twitter type site.
Gonna download the source and try out an instance at one point too.
However, I do have one question here:
How are you planning to differentiate this from other microblogging platforms with very similar feature sets and styles? I mean, GNU Social seems to be catching on a fair bit nowadays, and that feels a lot like this software too.
Is there a plan to make this the most popular 'federated microblogging network' rather than one of the other twenty or so out there already?
Just wondering.