Yesterday iFixit tore apart the Nintendo DSi and found several internal upgrades from the outgoing DS Lite. It seems that an experienced hand can completely disassemble the DSi in less than ten minutes using standard tools, especially since the job does not require a tri-wing screwdriver. This should make repairing and tinkering with the DSi substantially easier. The DSi now includes two integrated cameras that, unfortunately, have only 0.3 megapixel resolutions. This is certainly a bit underwhelming considering most mainstream phones have cameras of at least 1.3 megapixels. On the chip side of things, Nintendo is using a Samsung MoviNAND integrated 256 MB Flash memory / MMC controller chip, as well as a custom ARM CPU + GPU is stamped with the revision code 'TWL.' The DSi's chips all had manufacture dates around September 2008, indicating that Nintendo has been stockpiling these devices for quite a while prior to the North American release.

http://hardware.slashdot.org/article.../04/08/2133208