From Blue-IT.org Wiki
Before your start: it ist NOT POSSIBLE to use Whatsapp on the Phone AND on the PC simultaniously. Either one or the other. Then you have to re-register the phone!
I tested this on Ubuntu 14.04 LTS. The problem is to find out the WhatsApp password:
- https://github.com/tgalal/yowsup (READ !!!: https://github.com/tgalal/yowsup/issues/160)
- https://github.com/shirioko/WART ( sudo apt-get install mono-complete )
sudo apt-add-repository ppa:whatsapp-purple/ppa && sudo apt-get update sudo apt-get install pidgin pidgin-whatsapp
Another possibility is to use Android / Genymod: