Nintendo released the DSi just this year, but there are already rumors that a brand new system is in the works, and this could be a very big one. Gossip has surfaced concerning a new generation of DS. The "DS2" would be a complete overhaul with the system getting some serious power courtesy of the Zune HD processor.
Nvidia has allegedly won a contract to provide Nintendo's DS2 with Tegra chips, replacing the current DS' pair of sluggish processors with something considerably meatier. It's also been said that the new DS will be backwards compatible, not only making it a significant upgrade, but a significant upgrade that would shame the PSPgo and all its stupid design flaws.
The big meat of this rumor is that the DS2 could arrive as early as next year, which would be a potential kick in the teeth for anybody buying a DSi. I guess we'll have to just sit tight and wait for news. Whatever happens with the DS2, you can bet that Nintendo will keep it under lock and key for the foreseeable future. I hope it's not called DS2 though. That name looks horrible written down.
They should call it a DSgo.