Develop "waistbot" to capture ready market

In Australia, there is a very credible faction of the weight-loss community who believe the critical measurement in waist measurements. So much that a high profile Federal Government pubic health campaign refers explicitly to measuring the waist to measure progress towards ones ideal (safest) body shape. So.... waistbot - the same app recording waist measurement in inches or cm. Then let the Australian Government know about it so they refer people to your application. I just noticed someone else had the same suggestion. I reckon this is the right time for some for Oz. Perhaps other nations are thinking in the same way?