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The electronics / methods of translating motion/pressure on the IBM is different than that of the Toshiba. If folks are really interested, I could probably go find my reference and bandy about some technical words. In any case, the trackpoint was jointly developed by Toshiba and IBM. IBM put it to use first, while Toshiba decided to use a different method of translation for their Portege notebook. I will (in my ever-present need to be prescient) guess that we will be seeing more models from Toshiba (at least) with the trackpoint, and I've heard rumbles of other vendors licensing the technology. - Andrew