PushMail [$2.99 - iTunes link] has just gone 2.0. For those unfamiliar with PushMail, its a middleapp that creates an account for you to forward email, and when it's alerted to that new email, it sends out a push notification to your iPhone. New features this time around include:
Both the history and the profiles options sound terrific. For those who want GoogleSync-style push Gmail but are already using their only ActiveSync slot for Exchange, this is another option.
If you try it out, let us know what you think!