Your interpretation of managing email and mine are different. I manage what comes in my inbox (99% of spam and all listserv stuff) are server-filtered into specific mail boxes. What comes in my inbox is what I need to deal with and thus manage - some of which is read and delete.
With 7000 messages a week, it seems like you need a different email provider and a way to manage at the server and not on the desktop.
That said, I suspect you'll be on your iPad 1 for a LONG TIME if you expect a new mail.app in the iPad 3. Since the iPad 3 will be running iOS5 like everything else, the app will be the same. No reason whatsoever to expect anything different.
There is evidence that Sparrow - the VERY GOOD mail client on OSX is working on an iPad version, but that shines best with gmail accounts. WHERE too, the filtering of mail occurs at the server level.
With 7000 messages a week, it seems like you need a different email provider and a way to manage at the server and not on the desktop.
That said, I suspect you'll be on your iPad 1 for a LONG TIME if you expect a new mail.app in the iPad 3. Since the iPad 3 will be running iOS5 like everything else, the app will be the same. No reason whatsoever to expect anything different.
There is evidence that Sparrow - the VERY GOOD mail client on OSX is working on an iPad version, but that shines best with gmail accounts. WHERE too, the filtering of mail occurs at the server level.