Aaaaaaaand i finally gave this a good spin. And man, i'm impressed.
Initial library aside (It's quite meager. This is the Game Boy line we're talking about, Nintendo!) i have - almost - nothing but praise for this. Visuals are crisp and clear, the filters are veeeeeeeery nice, and i have played enough of the games i've tested to know that emulation is quite good.
Adding the GBC mode/palettes and the GBPlayer features for authenticity is a nice touch and a clear improvement from previous attemps on 3DS and Wii U.
I can confirm the GBA scaling glitch and the input lag on docked mode though, wich is a shame. I hope the fix those, because otherwise this is a very good package.
Now, what were we talking about over here? Pokémon? I think 1st gen will be announced on Pokémon day, but i don't think they'll be released on the GB app. What if the roms are included in the N64 app as part of the Stadium package, playable only through the doduo tower? Has that ever been emulated elsewhere?