WhatsApp dropped the most I cant believe this wasnt already there feature this week: message drafts. Now, WhatsApp lets you know if you have unsent messages typed up in chats so you know to get back to them later.To let you know about a draft, messages youve started writing will show a green and bold Draft word followed by what youve typed up. That way, you can ponder about finishing it when you open the app and not accidentally ignore your friends (though you still purposefully could, I guess.)Drafts also end up at the top of the chats list, so you dont have to scroll to search for lost ones. The feature is now available in the app worldwide, Engadget reports.WhatsApp announced in July that it had hit 100 million monthly active users, and it recently gained some useful new features, including its own built-in address book and custom lists to organize your chats.