For collectors of arcana out there, I've listed an Intel bubble memory development kit on ePay: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320042426869&ssPage Name=ADME:L:LCA:US:31 I never got around to using it--after I discovered the power requirements of the thing, I moved on to battery-backed SRAM instead. :) Cheers, Chuck