Pirelli announced that their X-Pressure AcousticBlue tire pressure monitoring system will be able to send low-pressure warnings to your Bluetooth mobile phone. The the X-Pressuxre AcousticBlue is said to be available in September 2005. (spotted on Gizmodo) I’d guess that this will require explicit pairing with your phone. Maybe this is a good application for the use of RDF and a simple automated publish-subscribe protocol. I’d subscribe to messages tagged as warnings from devices owned by me, a member of my family or University lab. Helpful service stations would subscribe to public warnings from devices that are part of a vehicle. Also required would be a simple security and privacy mechanisms, perhaps driven by RDF-grounded policies used by both the sender and receiver. I might use such a policy to delegate access to securityWarnings from my office computer to our department sysadmin. and he would configure his policy to accept such delegations from current department members. Rounding out the picture would be a reasonable approach to the GUI, lest we reinvent Clippy. I might want to configure my phone to show only urgentWarnings immediately and log the rest for viewing on demand.