I used to be a "fan" of TextSecure, but have become disillusioned lately. The development have always been slow. Very few people use it, even among my geek friends. Convincing people to use it is hard as well. Confusion over what it does, having to give out their phone number and no desktop client doesn't help. When I'm actually in need of encryption it doesn't even work, since Google Play services are blocked in China. I personally agree with the team behind hemlis, it's to late to become mainstream. Not that I expect most people to care. TextSecure fulfills it role as a political and technical wank.