Finally, what the world's been waiting for: an explanation from Yahoo regarding its role in Windows Phone 7 Data Leakage-gate
. (And we suppose that you have a better suggestion?) Here it is, in full:
Yahoo! Mail is widely available on tens of millions of mobile phones, including those running on Apple iOS, Android, Nokia Symbian, and RIM. The issue on the Windows Phones is specific to how Microsoft chose to implement IMAP for Yahoo! Mail and does not impact Yahoo! Mail on these other mobile devices. Yahoo! has offered to provide Microsoft a near-term solution for the implementation they chose, and is encouraging Microsoft to change to a standard way of integrating with Yahoo! Mail, which would result in a permanent fix.
Now, we know what you're thinking: why is everyone always picking on IMAP? But at least they're working hard on a fix, and in the end that's what really matters.