1. The NeoSD AES & MVS Pro carts can play Neo Geo CD games from SD card. Yes, really!
2. MegaSD is a basically an SSDS3 for the Mega Drive/Genesis. Yes, a Sega CD/Mega CD ODE in an FPGA implementation that plugs into your Mega Drive/Genesis/Mega sg (and yes again, the Mega Drive FPGA re-creation is supported!)
This enables so many shmups across the systems involved that I can practically feel my thumbs ache already!
Here's the whole announcement extravaganza:
