Concept Nindendo TS
Some fans of the Nintendo DS have been creative recently and come up with plans for a Nintendo TS. From the drawings it appears that the screen rotates 90 degrees to reveal the controls. Also it looks that the screen can be used in widescreen format to view movies. When rotating the screen you then have the option of using the top and bottom as the DS setup.
I doubt this one will make it in to production as it is created by DS followers and not Nintendo... but it is still creative and Nintendo could take some advice from these types of people.
Via: Loot-Ninja