Vodafone subscribers owning a BlackBerry Storm 9500 should visit CrackBerry and download the latest 18.104.22.168 firmware update for the handset. According to users' feedback, the updated device performs slightly better than its Verizon counterpart with the same firmware version. For me knowing just that is a good enough reason do get my handset updated.
So, head over to CrackBerry.com, and be sure to read the changelog beforehand.
Read - CrackBerry Blog post
Read - CrackBerry Forums thread