There is a huge, huge market in Japan for mobile devices and apps to run on them. We've got a number of App Store millionaires in my town.

So many and so prominent, in fact, that it took me 5 minutes to convince the tax office that I was not doing iPhone development. "No ma'am, I write web applications." "So iPhone stuff, right?" "No ma'am, web applications. They run over the Internet." "Like iPhone stuff, right?" "Similar in some ways, ma'am, except almost all of my customers use PCs rather than their cell phones to access the software." "... and people pay money for that?" "Yes ma'am, it is not uncommon to pay money for software (+), even before the App Store existed." "Wow... foreign countries are so strange."

(+) Japan does not have as prominent of a B2C software market as the US does, aside from video games and the aforementioned mobile applications. The largest electronics store in this town stocks less than 20 PC titles -- i.e. about a fourth as many as a WalMart, not counting their bargain bin.