A while ago I was able to wake up as soon as my cell phone started to vibrate. Now I need a decent ring tone to convince me to give up my undisturbed dreams. I guess it’s all that reckless sleeping that I professionally practice.

But how about a Silent Alarm Clock? You know, like the one designed by Johan Brengesjo which uses a wireless rubber ring which will wake you up by simply vibrating. Yeah right! Like that’s going to work with me! Nevertheless it’s an interesting gadget and it’s certainly mobile. It might be just the thing you were looking for.