They are not virtual com ports, as far as the OS is concerned they are real. Same for the hardware: there is a radio at the end of the wire. So no, unless you install another BT radio (in the sd/cf slot for example) you can't connect to more than one device.
I do believe that I've seen a software implementation that codes around this, much like modern OS'es multitask. Can't for the life of me remember where, but not on an Ax.
Dotan Cohen
http://essentialinux.com/emulators.php
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