or even if you have - found a great overview via: the skydeck blog
700 Mhz Auction - What it means for mobile services
Also - to point out the obvious, it’s been a while since I’ve posted but since I’m in Tokyo I thought, hey - that I’ve heard that blogging thing is big here, I should give it a try.
Lots of Japanese blog via diaries only accessible to their friends on a mobile social network called Mixi.