Ray

Most Pocket PC will not work with a Bluetooth headset, and the ones working
with this kind of device will only have Audio Out. So, no, it'll not be
possible to use speech-rec programs on the Pocket PC via Bluetooth headset
to dial a mobile phone via a second Bluetooth link.

What can be done is synchronise the mobile contacts database with your
Pocket PC, and then use the phone's voice dialing capabilities (if any in
the specific model you're looking at).

A Smartphone would combine the PDA features with those of a phone, including
synchronisation. This a good alternative, but remember that Windows Mobile
Smartphones are designed for a one hand operation, with not touch screen.
PIM features and limited date entry capabilities are great on these phones,
but don't expect to write an essay on them. There are some external
keyboards available, but the limited screen size is not optimal for this
kind of use

On the other hand Pocket PC Phone Edition are data centric devices with
phone capabilities. Data entry is much easier, the screen is bigger, but you
may not like the form factor. Have a look on this article we posted about
these devices: http://www.geekzone.co.nz/content.asp?ContentId=3428

I personally use a Smartphone (i-mate Smartphone2, a.k.a. XPhone or XDA II
or MDA II), and a Pocket PC (HP h4150).

The h4150 comes with Bluetooth and wi-fi, and it's nice to be able to browse
and download e-mails fast when close to a hotspot, or anywhere by using the
Smartphone GPRS access via Bluetooth. At home I synchronise over Bluetooth
with my desktop, while using it to control Windows Media on my desktop over
my wireless LAN.