“… Although it was produced for 30+ years and in quantities of millions, this handset is now a relic. My eight year old nephew has never seen it before. Technology has progressed and phones are now designed to facilitate ever increasing levels of functionality. As is often the case, with all that is gained, something is lost.

…

The next revision will employ an accelerometer to allow the user to answer a call by simply picking up the phone, further emulating the original experience. …”

read all about it here: http://labs.ideo.com/2010/06/29/bluetooth-classic/