@Muzer: Good idea but there's simply not enough memory for that. Mind you, the Retrode is already hallucinating a 128MB file system using only 3500 bytes of RAM. Right now, there are about 600 bytes left; not enough to even hold a single config file, let alone a whole chunk of SRAM data. The next major firmware revision will likely involve a desperate attempt at data compression, but I doubt it will free enough space to allow for such things.
@Neelix: Won't work because typically, first the data is written - then the file system entry (i.e., the name) is created. So we'd have to deal with the data before we even know what it's good for.