Tried on my Unibody MacBook. Can register 6 non-modifier keys at once. I like the feel of the keys actually. Not sure what mechanism it's using, but definitely

Tried on my Unibody MacBook. Can register 6 non-modifier keys at once. I like the feel of the keys actually. Not sure what mechanism it's using, but definitely much better than all other notebooks. Also found a 1991 UK-made IBM Model M. The clicking sound is such a great joy :)