No man, I know how to save contacts on the Lumia, and I know how to use whatsapp. Just today, I was chatting with myself between my 808 and the N9 using the same number. I registered Wazapp with my number and then removed the simcard and registered on the 808. You cant normally register on two phones with same simcard, you will get kicked out of the first one when registering for second time. My friends also could send messages either on the N9 or the 808, but not at the same time, they were different accounts (like different numbers) Im guessing it has something to the with the 1 digit trick on previous versions. And yea, I got a Nokia 808 Pureview awesome stuff!