(Possibly baked -- rmutt seems to be behind the curve on phone technology, but here goes anyway).
Cellphones are getting smaller and lighter -- some Japanese i-mode phones weigh in at less than 50 grams. This is light enough that it's not inconceivable to actually wear the entire thing on your head, like those goofy radio-headphones from the 70's. So why not put a spring clip in the back of a cellphone that will go over the top of your head, and hold it in the right position? It could even retract like a tape measure, so would only marginally affect the form factor of the phone.-- rmutt, Oct 16 2000 "Hands Free Adjustable Headset" http://twitpic.com/c18rznHeadset holds cellphone with suction cup [rmutt, Feb 06 2013] Ah - I actually misunderstood the original idea. That's what comes of trying to work at the same time as reading HalfBakery...-- hippo, Oct 17 2000 Why use a spring clip for a cell phone, when duct tape is so plentiful????-- BigThor, Oct 21 2000 ... or rubber bands (a bit less painful to remove)-- AndyKnott, Oct 23 2000 Juct check out anything related to "Bluetooth" on the web - You can wear your pc on your head if you give those guys enough money.-- ScepticAL, Nov 27 2002 random, halfbakery