there are produts such as the supercard,m3,r4 that have many of the same functions. some more, some less. one large advantage this product has over others is that its widely available at local shops. Walmart, Circuit city and best buy to name a few.
if anything I mention is out of bounds please feel free to remove that part of post mod. no intentional offense meant.
the max media dock does many nice things.
From what I have read online there is supposed to be many things you can do with it but most will require a little work ( no one click does all progs)
1) you can get a comic book reader program ComicbookDs and read .cbr files on the ds. There are many free .cbr's online as well as iligitimate ones.
2) you can play mp3's with it.
3) you can play videos as well.
(there is a side program you can install called moonshell that created a customizable interface and is supposed to give you better video quality as well as sound.)
4) you are supposed to be able to play homebrews as well as most NES, SNES, GBC, GBA and some Genesis with the right software. The idea of a portable Nes and Snes is quite appealing as they never had full legit hand helds of those. well that I know of.
hope that info helps someone.
Again mods anything out of bounds please remove and again sorry.