First of all, tgalal and other devs working on this, thanks a lot for your effort, great job!

Maybe I am a bit naive here, but has ever someone asked Whatsapp Inc. if they are interested in a cooperation?
I assume the only reason why there is no official app is that they think it is not worth the effort creating a Harmattan client.
If someone (e.g. one of the devs working on this port) would offer them to develop a client for them more or less for free, why would they decline this offer?
Wouldn´t this be a win-win situation?
Whatsapp would be present on another mobile platform and get more users, the devs would get all relevant information without reverse engineering and the community would get Whatsapp...

(ok, I understand the devs here might like the challenge to do it without the official support, but in the end, isn´t a full featured, nice and reliable app what we all want most? )