Well, so far nobody is doing them.

I appear to have the only confirmed upgraded Mk2a player in existance, but I don't have a supply of DRAM chips for other people's players (these cost about $40 per Mk2a player, I think).

And at the moment I'm unsure if I have the time to do the upgrades. The actual chip install took only about an hour on the one player I've worked on so far -- suprisingly easy to do after all of that procrastination! Much easier, for instance, than assembling the knob LED boards. But also much riskier.

EDIT: Note that I do have a temperature controlled soldering station (required for this mod), and a 0.01" tip on the iron (which helps greatly).

Stu has a queue of players to upgrade, but has yet to verify success (expected soon, though).

Cheers