The previous re-made Mac article and this article on
Wearable mass spectrometry has got me thinking. Re-purpose the lowly PDA so it's integrated into the ultimate business suit. Your PDA communicates with the suit over bluetooth and in the suit would be a variety of sensors. Imagine the possibilities for
really having an accurate contact database. Sensors on your back and sleeves pick up if the person is a back slapper or vigourous handshaker. Other sensors record the level of aftershave/alcohol, sound sensors pick up volume, maybe even rudimentary stress analysis. A properly written app could correlate these attributes with statistical analysis trends and advise on how best to make the sale, what the person's weak points might be, or if you are in any kind of imminent danger.