The current drivers do not give access to the network function, so we could not connect the Toshiba laptop to run file transfers. Likewise, we failed to connect the Palm Tungsten T because to synchronize everything via Bluetooth, which would be the main advantage, it appears you need to have the network function too. This does not necessarily mean that other Bluetooth PDAs, especially those running Pocket PC, cannot be connected either, though it is probably the case.
Unfortunately, HP was unable to supply us with the PDA they had promised, so there is no way we can be certain of this. The Sony Ericsson phone was recognized but, there again, we did not manage to synchronize the diary. It fulfills its mission as a phone, however.