This console looks interesting. It's like a Retron 5 but with PCE goodness.
I said what the hell and ordered the standard edition (without the controller adaptor) on Friday from Nin Nin Games. I was kind of sold on the idea of playing pc engine, turbografx, and supergrafx games on this. I got it in this morning, I was waiting for Fed Ex to come in before I left for work so I haven't hooked it up yet, I did test some of the cartridge slots with games just to see what fit correctly. I have no experience with the retron 5 but from the little info I've read, this does suffer from some of the same "grip of death," so I wanted to test the slots. The genesis and pc engine/ turbografx fit fine, it did get a decent hold on a Super Nintendo game, the famicom game was really really tough to get out. I'll post a review later on if people want me to.
Unfortunately I do not have an everdrive. I do believe Daskrabs who is fairly local to me brought a famicom one to White Castle's early November meetup I'll shoot him a PM and see if we can meetup sometime and test it out.
I don't see why it wouldn't unless it has some kind of menu compatibility issues.
Again it has a mirco-sd slot for storage and pretty sure you can load files off a usb stick as well.
Don't know why Everdrive compatibility would be important but to each their own.
The way the retron works is it dumps the game into memory then plays it. It can't dump an ever drive as its not a single game. Unless it's designed to run off the cartridges which can't work on these systems as they are emulators not hardware clones. I don't have this type myself but from what I read it's very similar to a retron internally. Just an emulator based machine. You can get a bootleg game to play through a retron though as long as there is no menu system, it will just report as unknown.