Just figured I'd let you guys know about this, since a lot of people don't like the idea of having to cut holes in their carts, plus having an SD card stick out looks a little goofy anyway. I also know some of you guys were using half-height SD cards (aka RS-MMC) but those weren't really ideal since they topped out at 2GB, they never made microSD to RS-MMC adapters, and the little adapter that converted it to regular SD was terrible and snapped off all the time. I found this dude and while it took a few weeks to get it (he custom makes them) I can now report it works wonderfully: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=271132354168&ssPageName=ADME:X:RTQ:US:1123 There is some very strong clear tab installed so that you can pull it out of your SD2SNES or what-have-you very easily. And if you plug it into an SD reader, you can remove it easily by pushing it in with something (I personally use another SD card I have laying around) and then just pull on the plastic tab he installs! I have a nice 32GB microSD card housed in my FFVI SFC cart with NO holes and NOTHING sticking out. I bought that on a whim so now that I used it I can say it works perfectly and I highly recommend it!
The link doesn't work anymore, I searched around on ebay, but couldn't find an appropiate adapter. Any chance you could post another link?
Here's the one I've used in the past that's worked well. I bought 3 originally, one was dead, and he rushed a new one out to me right away. Highly recommend.