[lewispb]

WhatsApp is starting to implement TextSecure technology in it's cross-platform apps and has 600m users.

http://www.bbc.co.uk/news/technology-30114346

[kristofferR]

Yeah, but WhatsApp isn't actually cross platform. It's only on mobile devices.

And the article you linked points out several times that the encryption is only going to be enabled for WhatsApp's Android client for the time being.

[aw3c2]

It is still a closed source application that I do not trust.