Why yes, indeed, it can!
It seems that on the asian side of the world, a device named the 'Play-Yan' has been released. There are no current American/European release dates, but i'm guessing summer or before.
http://www.gamespot.com/news/2005/02...s&subj=6118977
TOKYO--Nintendo DS and Game Boy Advance SP owners who have the brand-new Play-Yan peripheral can start to use it to play minigames downloaded from Nintendo's Garage Games site. This is a fresh role for the Play-Yan, which was created as a movie- and music-playing adapter for the Nintendo game handhelds.
Click Here.
On Monday, Nintendo launched its Garage Games site, which is devoted to games that can be downloaded and used with the Play-Yan adapter. A total of 12 will be released, starting with Insect, which is available now. Gamers can expect one new game per week, capped by a 13th bonus one, Nintendo revealed this week.
Players must download each game onto a computer, then unpack the file, transfer it onto an SD card, and then insert the card into the Play-Yan. The games are in the ASF file format and will play like movies if run on a Windows-based PC.
Although the Play-Yan was officially released Monday, Nintendo has already discovered a bug. The adapter's left and right audio channels are reversed when players use headphones with the device. Because the Play-Yan is exclusively sold through the Nintendo site, the company has been able to contact all buyers, telling them they can return the device for a free replacement.
For more information on Nintendo's Play-Yan, see GameSpot's previous coverage.