Flutterby™! :

Revelation from playing further with the OmniSky and reading a bit more about Bluetooth: The most interesting information on the web will still be from small publishers, in the case of Bluetooth that'll be the personal data people publish while you're in proximity to them, and searching and filtering will be even more important. Spamming will become a huge issue (let's put a random serializer in our Bluetooth devices, slap transmitters on buses and other vehicles that get high people coverage, and put our name and address a gazillion times into everyone's pocket PC and cellphone list). Searching isn't something best done over a low speed wireless connection, but finding a way to integrate the preferences in a given device with larger smarter databases is going to be a prime application.