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As long as Mac OS X is not made for touch screen use like the iPhone OS, it's just a gimmick, an expensive one considering the ModBook.

But I think there is some use in there, if the handwriting recognition works 99-100%.
 
I think tekzilla did something on this like a month ago...

It has no multi-touch, and you have to use a freakin styles. I'll buy one when apple makes one.
 
I think this has been in existence for about a year.....

OWC announced this a long time ago and has been selling them for a while.
 
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