While trying out the Yahoo Mail Beta (in combination with the new Yahoo Mash Beta), I imported my address book from GMail into Yahoo Mail today - and was HORRIFIED when Yahoo proclaimed that it was now going to spam all my contacts and tell them about my "new" Yahoo e-mail address.
What on earth do they think they are doing? The system never asked me for permission to notify my contacts!!! And why would it do such a thing in the first place, when all I wanted to do was import my address book?!
If you got a message from Yahoo today that asks you to update your address book because I switched e-mail addresses from gmail.com to yahoo.com - please accept my sincerest apologies and ignore that message!