I just wanted to add my 2 €-Cent pro Tungsten E.
TesTeq has written some good points versus Bluetooth.
The main advantage of a cable driven system is the double effect of loading and syncing. Currently i use a TE:
-in the morning i arrive in the office and immediatly pull the TE out of the pocket and connect the cable;
-later when outlook has connected to the server i sync;
-when i leave the office i take the TE with me.
(Of Course this repeats sometimes a day)
So far nothing nothing exciting - just ... in the meantime the TE is loaded!
I never heard a PDA is loaded via Bluetooth