I have some more news on the 20 Mhz chip, straight from the horse's mouth:
 > Feb01/90 11:37
> 194:8) Anthony Fadell: 
>    Rick, 
>       Our max speed at 1.5 micron is about 21 MHz but our fabrication house
>  is starting up their 1 micron fabrication line right now.  The speeds have
>  not yet been released on their gates but we should se the chip go at about
>  25 Mhz or higher. 
>       Yes we have looked into GaAs tech. but until our fab house is stuck in
>  terms of technologies we will stick with them. 
> 
>                      Tony  
I am using my conference as conduit for questions, just so they're in
one place.  Send them to 
Crlt-...@ub.cc.umich.edu, and as long as
Tony's willing to answer the questions, I'll post the results. 
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