In my opinion it is needed to be able to upgrade the board up to 8MB as this was the max. possible by design (iirc).
It is ok to start with 128k (better would be 256 or 512k) but CBM designed the c65 for up to 8MB, and thus I would like to know, if we can upgrade the ram.
Also would be nice to see some previews of the adapted geos. And maybe also a list of the 'Software Bundle' as stated on the website.
Also one question to LGB: would it be possible to insert a full Basic10 in xemu?
I read somewhere that Paul said that there exist a rom with Basic 10 full implemented.