Nintendo has announced a new portable console under the temporary name 3DS. According to a press release, the console will support three-dimensional effects without special glasses. The console will also support games from previous models. (on photo 3 of the Nintendo DS, there are still no 3DS photos)
It should be on sale in the next fiscal year of Nintendo (from April 2010 to March 2011). No photos or design of the console was shown. More information will be at E3.