Just got back from Lisbon, where I participated in the security panel discussion at the All Hands meeting. Also on the panel was Mikko Hypponen of F-Secure, (the guy in the blue shirt in the middle of the picture) who then gave a fascinating talk on mobile viruses, including many new ones that are now using Bluetooth to propagate (over 20 of them!). The link above is to his blog, which is worth watching as it is run by the F-Secure tekkies, and they post new attacks and technical details to it as soon as they learn of them.