Chances are that it's just Retro-Bit Generations guts powering each system, so I was mostly posting it for amusement value only.
If they could get a decently upscaled HDMI output from a SNES-on-a-chip though, I'd buy one. I thought the accuracy of the SuperNes side of the Retro Duo was excellent, but I'd bet money that it's similar hardware to their plug and play, powering the exact same lackluster SuperNes (And Genesis and NES) emulators.
The Retrobit Generations emulators are horrid. I'd take the system on a chip clones through an HDMI upscale over that garbage emulation. The Super Retro Trio was quite excellent. Judging by price alone, I suppose they have a Trio with an off-the-shelf upscaler chip for the HDMI. At least repros and most homebrews (excluding GT-ROM) will work on it, along with Everdrive. None of that stuff runs on a Retron5 or Retro Freak.
Also if it's a clone chip with upscaler, will it be any better than hooking analog clone system up to an HDTV? Do they line triple the output to 720p and preserve 4:3 aspect ratio, or simply do the 480i deinterlace and stretch mode like every cheap off-the-shelf upscaler?