>> I want large display areas.  If the display remained after power  
>> was removed that would be a bonus and is not required.  Update  
>> speeds can be very slow.  Updates can take seconds

What sort of resolution are you after?  As far as I know, this is NOT  
the sort of market that "digital paper" is currently addressing.   
Aside from the Esquire e-paper cover demo, most e-ink displays are  
aiming at actual high-resolution paper replacement, where the  
electronics and electrodes are significantly complex compared to the  
supposedly mass-producible display material itself.  I'm not actually  
aware of any "very large display area" technologies; aside from  
macroscopic magnetic things, and assorted projection and/or lamp/led- 
based things...

BillW

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