I got a 1910 (bluetooth yes, 802.11b no) it has the sd and cf slot.
while I like this thing, I don't think I would get another if I lost this one.
you REALLY need to stay on top of the battery, or it'll dump all and you'll start over. not too big of a deal 'cuz you backedup to the cards, but still a drag.
control of the bluetooth is not layed out very well. no real instrucions. I use it as a toy (gps/maps and such...love it!), but if I used this thing for business or really used it for anything important, I would have returned it long ago. I found a lot of people on the forum at the HP site (i think) felt the same way I do.
I use the mapopolis (for the states) and a low-buck ambicomb gps in the cf slot. works well enough and it's a lot of fun (for a newb)