Yeah, as said you can choose any password during the registration.
The Problem just is that if you are using a password that is different from the default passwords you may can get caught for using a "non-official Program".
I don't know how whatsapp saves the passwords but if they save them in plain-text (what they shouldn't do) they can delete/block your account even when you already did register.

Because the password just seemes to be an md5 hash and has the length of one you may can just use any pw, get the md5-hash of it and register with this md5.
In this case you shouldn't stand out during registration but still having an easy to remember password. Making an md5 of it an pw isn't that hard


Too bad that you don't have time to work on it at the moment

It would be great to have an expert for libpurple-plugins to work with. If he would do the coding-part maybe I could try to interpret the source code further giving him the information how to connect etc.?
I don't want to promise anything but so far the code I have looks like it would be doable for me to look for sending/recieving messages etc. and if Eion knows how "standard" XAMPP works (I think facebook uses mostly default XAMPP?!) we may can get a working version. At least sending/recieving messages.

If there is a guy who is good at qt programming (or whatever N900 Applications need to be programmed with) maybe we could do like an App for register an Account and, depending on how WhatsApp finds other WhatsApp-User, the searching for other WhatsApp users in the contacts and then as "main" part an libpurple plugin which does the chatting?!


The biggest problem at the moment which I forgot to mention in my fist post is, that Accounts registered the way I explained don't get found via the "default" WhatsApp App at the Moment :S
But I didn't find any more code related to registration up to now so maybe you just had to log-in once or to be logged in to get found