| http://www.w3.org/ns/prov#value | - Although the computing device 250 may of course be any convenient type of computing device such as a desktop computer or laptop, in a preferred embodiment, the computing device 250 would be a handheld personal computer (HPC) with access 260 to a wireless data service, which can be circuit- or packet-switched and based on any available air-interface standard.
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