The DC keyboard does exactly what it says on the tin, well box I suppose, if you want to be padantic. Anyway, the dreamcast keyboard works wonderfully, and if you plan to use your DC for the internet you really do need the keyboard! It speeds up typing no-end, and can be used with chu chu rocket, sega swirl and the up-coming phantasy star online. It also looks nice and sort of has a wow factor when your mates come over, cos the playstation doesn't have one!
All in all, an essential purchase for anyone wishing to take advantage of the DC's online capabilities.