Mobilising emotion or emotional mobilising?

Kristina Höök talked today about human centered computing using digital products that attempt to set the scene for emotional experiences. It was all a bit creepy. She gave examples of something called

• eMoto - that's a phone - if you used this dildo-like pen with your mobile phone, it would send your message in colour depending on your mood, or what you wanted to express - I'd be grey so as not to give away mood to any one but family -
• Affective Diary - you get some electronic gadget that reads measurements from a wrist-strap and turns them into not-quite-human blobs, whose colour is supposed to mean something
  

Needless to say, most of the computing chaps appeared from their body language to be a bit sceptical and disdainful of such equipment.

I can't quite see the use of it - but if given feedback I guess you could control your sweat and temperature - like you can control your blood pressure if you get feedback. So may be that's useful for controlling your stress levels.