The market that would "welcome" it would probably never see it. Such an implementatin would be released into the market the same way as the rest of Lynns product is.

All of the requests for this product come from students or hobbeists (sp) I have yet to see a valid argument for a new impimentation.

I sympathise with the novices that get the rude awakening here but the fact is they need the correct information as soon as possible That information is : The 8255 is a near obsolete chip that was not designed or organized to work well with the 8051/2 architecture. Further these novices need to understand that there are probably less costly ways to get to the final functionality they desire than using an 8255.
An additional issue is the packging. If the user (student) is having a board done it will probably be surface mount. What package choices are available for the 8255? What packages would Lynn's implementation be released in?

Richard as you commented in a different thread about the terrible waste of time and effort on a product that was more artisic than usefull can I ask what cutting edge project can you see using an 8255 in any form or package?
Terry