My first digital camera used Smartmedia. I had a 32MB card, if memory serves. I could pull pictures off via a serial interface, which was slow and required a proprietary app, or via a FlashPath[0] adapter. Sadly, FlashPath adapters require a driver and aren't actually emulating a floppy diskette. Putting the reader into a floppy diskette shell and using the disk interface to transfer data is still a pretty cool hack, though.