Iv just read this - http://blog.whatsapp.com/index.php/2012/06/why-we-dont-sell-ads
The bottom got me
At WhatsApp, our engineers spend all their time fixing bugs, adding new features and ironing out all the little intricacies in our task of bringing rich, affordable, reliable messaging to every phone in the world. That’s our product and that’s our passion. Your data isn’t even in the picture. We are simply not interested in any of it.
Should have 'updating' and 'exluding iPhone 3G' in there somwhere.
Anyway..
This may help or be informal... I have access to my 'iOS files' theres a way in there that 'ahtasham' posted that enables it to work because its made to think its 4.3 when downloading any app update. So Whatsapp?
If they or someone could paste the T & C's on uploading apps as I have looked and I cart get on them as Apple only let devolopers view them....
Im on 4.1 on iphone 4 with alot of apps installed and settings