I installed it, and played around a bit. There is an email app, and a chat app, and a social network featured right on the front-page. Seems to be very dynamic, and well designed too.

TOR is supposed to make you anonymous, but AFAIK that is not really the case. You have to be on a clean device, piggybacking off someone else's network, and have javascript disabled (making most of websites unusable), and even then there are compromised exit nodes, timing attacks, etc.
Seems like TOR is just as anonymous as Bitcoin is. Obfuscated, sure. Anonymous, not really (perhaps somewhat with very rigorous precautions).