Amazon has iHealth Blood Pressure Monitoring System for iPod Touch, iPhone, and iPad for only $58 (was $99.95) and ships for Free.  Thanks AFrugalChick

First ever Blood Pressure Monitoring System for iPod touch, iPhone, and iPad. iHealth turns your iPhone into a powerful blood pressure monitor. It includes a diary for tracking BP measurements taken by the iHealth BP Dock. Its elegant user interface and vivid testing process makes keeping an eye on vital signs more enjoyable than ever before. It also empowers you to see the changes and reasons behind them using simple analysis tools: interactive graph, statistics, smart World Health Organization (WHO) classifications, and an FAQ. Visualize: See your testing process in motion, track your blood pressure changes via graphs, and summarize your statistics by time, date, and WHO classification. Track: iHealth records your systolic and diastolic pressures, heart rate, measurement time, and pulse-wave graph. Years of data only take up the spaces of a few songs. Management: Helps you manage your records by using simple tools: graphs, average calculation, smart WHO classifications. Share: E-mail to share your results with friends or family members to keep them notified of your current situation and historical results. You can also E-mail your doctor or other medical professional as part of your personal healthcare.

• Use with iHealth app to monitor, track, and store blood pressure readings
• Measures and tracks your systolic/diastolic numbers, heart rate, pulse wave and measurement time
• Create visually dynamic charts to track your progress
• Keep track of physical activities and daily diet as part of your overall health
• Compatible with iPhone 3G, 3GS, 4; iPod Touch 4G; iPad and iPad 2

Amazon prices can change without notice, click HERE to order yours.