The digital store for Nintendo's upcoming 3DS will include not only Game Boy and Game Boy Color games, but also Sega Game Gear ad Turbografx titles.
The eShop will also feature 3D classics, updates of older Nintendo games with 3D effects. It will hit the 3DS as part of a larger system update for the 3DS which will include DSiWare, DSiWare software transfer and a web browser.