Although this is a PhRMA sponsored (sanofi-aventis) iPhone application, it appears to be very helpful and useful for on-the-go tracking of nutritional information. It seems designed specifically for diabetic patients, however, its uses appear to extend to any disease state where managing nutrition is important (e.g., hypertension, hyperlipidemia, metabolic syndrome, etc.).

I would consider this app in the realm of telemedicine - or at least mobile health - and the only suggestion I have for improvement, at first glance, is the ability to export or somehow otherwise share this information with healthcare providers.