Don't think this has been mentioned elsewhere.
New version of the SD2SNES using a more powerful (and not at all discontinued) FPGA has been announced.
Here's the thread on krikzz's forums: http://krikzz.com/fo...hp?topic=8578.0
Not really sure what's so great about it right at release, but the possibilities are much greater. Things that have been kicked around by ikari and krikzz include turbo mode for Super FX chips (which I would guess to mean better framerates on those games), full save-state (including SPC audio) support, and maybe Super Game Boy. All for the same price as the current SD2SNES, apparently.
The first SD2SNES isn't super interesting to me. I already own all the extra-chip games I have any interest in, so I'm more eyeing the Super Everdrive X5. But Super Game Boy support and playing Game Boy games would alter that for me, for sure.