This...is unbelievable. This is the shiniest homebrew I've ever seen for the DS. Ever. It even made me post my first post! XD
Well, as buggy as you say the public demo may be, I tried it and what I said above applied then. After watching the new video, I'm proud to say that my opinion still stands true. It's a HUGE improvement; from this PS3-ish menu, there are now built-in custom settings (yes, no more "menudoassistant" ^^), a file explorer with, simply amazing icon physics, stylus-operated browsing, massive anti-aliasing (FTW dude), awesome animations and effects everywhere (I loved the "grass" thing in the settings)...
Simply put, in my honest opinion, this is amazing beyond recognition. More so because you're a "One Man Army". (Our Lady Peace song! =D)
I use an R4 btw. But right now, only 50% of me really cares if my card supports this. If this project goes on to be truly successful (which I'm pretty DAMN sure it will), if it's really that unbelievable as the video shows me, this just might be the very reason I buy another flashcart that supports menuDO. For me, it's that great, and I want you to know it.
Be proud of it; you have my support.