"..the means by which AUTD works must be initiated by the device."
The one area that you've not mentioned is the provisioning for this on the device - obviously at the moment there are _some_ devices that support this, or you wouldn't be able to watch your management bump in to each other, however, the devices we have right now should be capable of using this with a phone based client (after all, we are talking _smart phones_ here, rather than just your 8390). Any details of when these will come?
Secondly, just to correct you on a couple of (largely irrelevant ;-) ) points - you could definately get a connection cable for the 8390 and the 7210 - In the UK, the 8390 was offered as the 8310 (the ONLY difference being the radio frequency - the 90 was tri-band, iirc) and there were cables for that, and the 7210 was re-badged for business (with a much nicer facia) as the 6610, which came with the data cable in the box. I synched using Nokia Data Suite (also in the box on CD) and things seemed to be ok. I was able to pick up the contacts I'd synched to the old Palm M105 I had, and although it left things a little screwy to start with, a bit of playing sorted it out.
Currently, I'm using Smartner's Duality to get AUTD mail - I'm not busy enough to have someone booking meetings for me, so just having access to the last couple of days worth of email is quite enough! Perhaps an option where only certain items are updated might be useful, as there are many people out there who only want to have meetings updated, to stop the data-creep coming home with them, and also reduce the overhead of mobile data further?
PS - the mobile telcos are running scared of Skype over mobile, which means data rates are unlikely to get much cheaper any time soon.
K