So, the big questions now are (for who may responses):

Yappari will be updated to the 1.4 or 1.5 protocol?

If so, how many time will take care?

It will be better take the Yowsup alternative? In time invested, i mean, update Yappari will be more difficult and take more time than port(?) Yowsup.

Or we just have to forget of whatsapp on the N900?

Grettings.