PicoDriveDS 0.1.3 is up! Changes:
Files are the same place as before or you can use the handy new release directories to be sure.
The SRAM feature is not the same thing as savestates. Basically it emulates a Genesis cart's internal Save RAM, and whenever the SRAM is written to it writes out (romname).srm. When you load a game, it looks to see if that SRAM file is there and loads it if so.