My memory is lousy on this stuff (memory versions/sockets), and I didn't write it down, but "memory module, 64M, still very available dirt cheap" points to something like that...

Still, Patrick came up with the idea on the spot during the discussion and hasn't yet (well, who knows by now ) looked at the nitty gritty -- just so we don't jump overboard...
Chip stacking is proven to work and even 32M is probably all one's likely to need. Hmmm, where'd I hear something similar..?..

One big thing about this lovely idea was that it'd be an easier (soldering wise) route than the chip stacking.