DS Vision is a service that allows the manga enthusiast to access graphic novels, animated shows and films.
What you'll get
DS cartridge with built-in MicroSD slot
512 MB MicroSD card
USB interface.
For around 1000 yen ($10) you can download a lot of fun from the official DSvision website. 20 minute episodes of Yattaman or Speed Racer will run for 210 yen ($2). 200 pages of manga are selling for 315 yen ($3).
Some manga series will go so far as to hand you a few chapters free.
I'm not sure that the DS Vision is completely worth it. This is essentially a watered-down R4...but more expensive and not multi-functional. So actually, this is half an R4. I doubt DS Vision stores personal content such as music, vidoes or photos. R4 on the other hand does it all, and even throws you a bone or two by handing out software of a non-illegal nature. Swear by it. I myself have not used R4. No sir. No sir. A friend told me about it. With this in mind, one would assume that the content for sale at DS Vision could inextricably find its way into the hands of R4 users...legally of course. So make your choice.
The DS Vision package retails for 3980 yen, or approximately $40. Knowing the Japanese and their dedication to manga (like Alec Baldwin to Jenga), this product may just outsell R4. Absolute madness.