Oh my God would that thing sell! I think the idea is great, but there are a few issues that would have to be addressed. I think the biggest is heat. I mean, my iBook 600 will get hot enough when running photoshop to cook an egg on, so I cannot imagine what the TiBooks are like. Also, cost would be a major problem. The sucker is expensive enough as it is, 2 procs, man that would be real expensive. If they could resolve those two issues, then yea, I think it would be great.
Also on the plus, it would have to be bigger to disperse heat, and would thus allow for an even larger monitor. 😀
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OK, I am part of the anti-zealot campaign too.