Don't have the iPhone but I have a touch 2G, It has helped me a lot!!, with all the available tools to learn japanese, kana and kanjis flashcards, etc. And also at collegue once I broke my graphing calculator and didn't have the money at that time to...
I heard about Nico Douga a while ago, Its great!, I'm more identified with Nico Douga than with YouTube maybe because the kind of videos that we the otakus are used to ^3^.
Very sad, I used to watch Project X, a show about the unknown pioneers and inventors in Japan and I remember a pair of episodes showing the health care system in Japan. They were very proud of it, I think they just couldn't show the sad facts.
It would be great if you picked a friend of yours wearing the Chewbacca costume with Hector in Vader costume, and the three of you dancing in the streets of Tokyo.
Wow I always thought that all public toilets in japan were clean, I mean because people maintain them clean because a cultural fact, in my country, the name of which I have no desire to call to mind, public toilets are the hell on earth.