by chance I found a picture of the external keyboard for the Fujitsu Pocket Loox and it looks an awfull lot like the one Handspring had to offer for the treo 600:

Image @ expansys

Keyboard @ expansys

If I could use the Loox keyboard with the treo 600 I could expand my choices of where and how much to pay for it. I suspect that if the hardware connectors are compatible I'd need some driver software that works on the treo.

best regards,