Breja: What does GOG need with a gamepad? For all those adventure games, strategies, RPGs etc.? I mean, I don't actually think gamepads are any good for anything, but even if we were to assume they have some use, it would be genres that are by far the minority of the GOG catalogue. And what would be the point of GOG making their own pad I can't even begin to fathom.
tinyE: The Lego games. All the driving/racing games. The platformers and metroidvanias. The shootem ups.
The Lego games... maybe? I don't know- the few I played worked perfectly well with K+M. Driving/racing- don't play them so I wouldn't know. There's not so many here though. Platformers- I'd rather watch the Catwoman movie again than ever play a platofrmer with a gamepad again. Shootem ups- I don't play them, so I couldn't say.
Anyway, it's still a small part of the catalogue, but even if it were 50%- what's the point of a special GOG controller? There's no shortage of pads. Whyat would be special about this to warrant making it? A pad that would be in permanent beta? Would it have special buttons for features that only worked for a few days and then were promptly forgotten?