Paul.
I'm (one of the) resident clone system collectors on the boards.
Thanks for taking the time to stop by and give us some potential specs for the FC Mobile 2.
I've got to ask ... were you on board during the development of the FC Mobile 1 ... and if so, what in the world prompted the reverse-button layout?
Games like Punch-Out and Super Mario Bros are downright un-playable with backwards buttons.
While I'm glad to see that that has been corrected in the design (or at least in the prototype) of the FC Mobile 2 ... it also might serve better from an ergonomic/usage standpoint if you level out the buttons instead of having them on SUCH a dramatic angle.
Also, the "discoloration" does happen frequently on-screen and I've seen it happen on multiple FC Mobile units. It's a complete color palette shift where greens become purples and oranges become blues etc. I've never seen it happen on any other Famicom/NES clone that I've ever used ... it can be alleviated by powering the unit down and then back on again.