Note that you're forking the net with this though.
As far as I understood in the posts about TextSecure here:
- You can run your own server
- Your server cannot talk to the 'official' servers
- Federation is somewhat possible, but works on a 'We whitelist your machine' base
It's not XMPP. So people using 'Default' TextSecure and your friends & family on your own TextSecure server would be isolated, as far as I understand.
I'd love to be corrected though, because THAT (not business model/jurisdication) is my reason why I'm not comfortable using/recommending it. No offense to moxie and his team, but for me this is another Threema unless running under my (most likely not competent enough, if we're honest) supervision.