Senator Ron Wyden (D-Ore), one of the chairs of the Senate's Committee on Aging, held up at least four wireless health devices during the Senate hearing last week: Nonin's Bluetooth-enabled pulse oximeter, MedApps' HealthPal, Corventis' PiiX sensor and another one which we are working to identify, but looks like it might be a transdermal medication delivery patch made by Isis Biopolymer....