[BBLISA] Dual processor laptops?

[Scott Ehrlich]

I've been asked to spec out a dual processor laptop.  What is the difference 
between Intel's Duo and having dual processors?  I've heard that the Duo Core 
puts two processors back-to-back, affectively making it a dual processor.  Is 
this correct?   How does this really differ, if at all, from having two 
separate processors on the motherboard?

We are largely a Dell shop, but I don't have to go solely with Dell. Ignore 
budgets for now.

Thanks for leads.

Scott