Pidgin supports OTR, but it crashes enough to raise concerns about that last point.
This isn't so much a "how can I be secure" question, but a "what alternatives to Skype do I have that work on Linux" question.
Which is one I'm also interested in, since I also want something thats (1)linux compatible, (2) easy and accessible for "average users" of any OS, (3) and secure. And I'm hoping for those things in that order.
For real-time text chat you can try Cryptocat: it's cross-pratform, implements the OTR protocol [1] and is rather user-friendly.
I realize I could probably use Yate for everything, but I know asterisk and openfire better at this point, so I use them. :)
http://www.fastcolabs.com/3007320/tracking/bitcoin-coming-br...