As I wish to use my TREO on the road, and the law here requests a Car hands-Free Set...
I was wondering if any of you know of such instrument.

I was truly surprised to see that Handspring did not take that into account, even after Visor-Phone was out-there for about 2 years now.
They didn't even wire the relevant output to the main connector - so you'll need 2 wires, one for power & the other for Mic / Loudspeaker + no solution at all for the Antenna, which means - no easy mount in the set as in most cell phones.

It's just frustrating.

Any Idea ?