So, should I take the plunge and buy now or wait for what will be produced in the future? Will I be able to get a better device than the Mk2 in, say, one year, at a lower cost or is this head unit so ahead of its time that it will take five years or more for something equally advanced to hit the market?

This reminds me somewhat of Apple's Newton, a PDA with advanced hand-writing recognition, which has been hardly matched by today's 32MB-MP3-playing, hi-color screen hand-helds - more than three and a half years after the Newton was abandoned by Apple.

Georg