Orang-Otang‘s got some wearable computing patents that seem more Borg-worthy than primate-friendly. In order for wearable devices to catch on apart from specialized tasks (such as the wearable credit card terminal, which is useful for mobile points-of-sale), I think these devices will need to be more in tune with our clothing or at least be more elegant. Of course the actual products will probably be prettier than these patent drawings. But we are a ways from the idealistic ground covered by the IDEO/MIT wearables project. Extreme Computing has links and info on many wearable computing resources. (info from ZDNet wearable patents article)