well sorry no help.
but i'm interested too by an external memory.
cause i'm sure that 8K it's a bit short for my program in arduino..
but perhaps there is a simple solution to add memory (16Ko) but not a bunch like an MMC card.
Have you solutions ?
this sort of project (SDCard) was announced in the road map 1 year ago :
and so... nobody found this idea really interesting to develop ?:o
regards
eric