Canuck: Yeah, well, scratch the idea of the battery pack - just checked on the full spec on the Landware site and it unequivocally states that it is not compatible with the Palm III, so I presume it's not compatible with the Prism either. Might be worth watching the Landware site for when they come up with a GoType! keyboard for the Prism - that could very well come with a power adapter port on it.
I find the Landware GoType! keyboard a very useful accessory for my IIIc (it's one piece and feels more sturdy than the folding version from Palm themselves).
Cheers,
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Feline
(I Sit, I Watch, I Smile)