Just four and a half years after its initial release, the Nintendo DS has sold more than 100 million units worldwide, solidifying itself as the best-selling portable video game console of all time.
Adds two larger screens; two 0.3-megapixel cameras; a bit thinner than the DS Lite; exclusive access to the DSi Shop for downloadable games and applications
No longer supports Game Boy Advance games; lower battery life than its predecessor; Internet security settings are buried and confusing