Hey SCORPIUS
thats what I am talking about the error which everyone received on While registering the ;java whatsapp can be eliminated using blue stack...
http://talk.maemo.org/showthread.php?t=84489

If u register exactly the same way this post says...

when u r editing the prefs.xml file

this line <entry key="REGSTEP" value="1"/> takes you to the
verification number

then as it say switch off the N900...

register through bluestack... it tries to send the the sms for some couple of mins.

then the sms fail message is displayed

after that switch on ur N900...
and in bluestack press call me for verification code..

and u will get the call
Input the verification code in Ur N900 (NOT BLUE STACK WHATSAPP)

the version 0.0.3 and 0.0.9 is what I did...

and it worked for me.......

I swear I started using java whatsapp and yappari on this saturday