Finally, Whatsapp has released their desktop client. They got windows and OSX version. Well, actually, it looks same as their web client. Also, it got the same process to activate the client. It will generate the QR code and you need open your mobile app to scan the QR code. It sounds that requires the mobile app to send and receive the message.
Not Much different. I think that is useful for you, if you do not have a chrome browser to open the app.