http://gizmodo.com/gadgets/home-entertainment/fc-twin-snesnes-hybrid-console-234080.php
I just bought this console, brand new, for $40 at a little gaming shop in my town. I didn't even know it was available until I walked in and saw it running the opening scenes of Super Mario World. So maybe this is old news, but I just bought it a few hours ago, and so far I am impressed.
First of all, is the obvious kicker that it has slots for both NES and SNES games. This is especially nice because it gives you a stereo output for your NES games. I know they don't run in stereo, but at least you will get sound out of the left AND right speakers.
Second, the controller ports are replicas of the SNES controller ports, so if you aren't happy with the SNES replicas it comes with, you can grab an old SNES controller and be happy. The only really mentionable problem that I have with the controllers it comes with are that the shoulder buttons don't have as much throw when you press them as the normal controllers do. The digital pad feels like it might be a little tighter feeling than the original, but so far it hasn't bothered me at all.
I have only played a few NES and SNES games, but so far everything has seemed perfect. From what I have read, these are not the same as the other machines that have been available in the past in that they do not emulate the games. The above link makes mention of it also, that they are pretty much copies of the original system. Again, I really bought this on the fly because it was so cool, and have had minimal time to test it and to read up on it, but so far I am really happy.
Some other interesting details about it:
You can have two cartridges in the machine at the same time. The Power button decides which one you play, with a seperate switch position for "8-bit" and "16-bit". Not really important, but interesting.
Comes in Silver, Gray/Black, and White with Blue buttons like an SNES.
There were other things I was gonna mention, but they escape me at the moment.
I'm curious if anyone else has tried this or had any information about it other than what I have said.