The National Heart Lung and Blood Institute has several free applications available for PDA's:
High Blood Pressure in Children and Adolescents--for Palm OS and PocketPC
JNC 7 (High Blood Pressure Guidelines) Application--for Palm OS and PocketPC
Act in Time to Heart Attack Signs--Physician Quick Reference Tool--for Palm OS
BMI Calculator--for Palm OS and PocketPC
OEI Treatment Guidelines Implementation Tool--for Palm OS and PocketPC
ATP III Cholesterol Guidelines --for Palm OS
Other PDA download posts:
Mobile Merck Medicus
Immunization Schedules
Get Dynamed on your PDA
End of Life Care Fast Facts
