How to change order of mail accounts in iPhone 4 mail app

Is there a way to do this?

I have several accounts, and wondered if I can put the ones I use most at the 'top' of the list. But it seems there is no way to change the order of accounts in the Mail home screen - the list currently is ordered (I think) in the sequence that the accounts were created by the initial sync from my computer.

Thanks in advance etc.