So how is the security changed with the new firmware release. Is remote wipe only available on Exchange users. If so, what about the rest of corporates users on the iPhone. I forward all of my mails to my Me account to be able to utilize push email because we only use a BES server. I'm even skeptic about sending a few emails through the Me server. Are the emails encrypted?

However I'm not so comfortable about storing sensitive information on the iPhone itself, especially if it's locked with a 4 digit pin, my Curve use a 256 Bit AES Encryption, it even had encryption method on the SD card.