But now Apple have released a few new prototypes. The first is the LMac, a fully customisable Mini Mac that you can create from Lego. Can't decide its target market to be honest, nerds, women or 5 year olds. This one might not get off the ground.
Here we have the ModBook Pro, a laptop/palm book that is touchscreen and is amazing. This is actually more of the real thing than the others in this list, so expect to see this in every Mac household in a years time!
Finally the most genius and absurd idea going. The Tri Mac, a MacBook Pro with three screens. Now this is getting seriously cool. I want one, I don't know why, and I guess that is why Apple is so good at what it does, but with three screens you could...could... erm... look cool?!? Exactly, Apple knows what they are doing and long may the cool prototypes exist. 
And if you are wondering what could be next, this is a great post...Think Apple, think Braun 1960 perhaps?