admin answers:

Try Mapple maps, you can find them in any bookstores in Japan.
Or on the net: http://map.mapple.net/
Hokkaido is very easy to get around, it is not Honshu….also if you rent a car, there will be a navigator in it.

Try this one too
http://northern-road.jp/navi/eng/index.htm

admin answers:

Highway bus goes direct from Fukuoka airport to Sasebo in one hour and fourty minutes and is faster than limited express train.
This bus service is provided every 20 to 60 minutes.
There is English timetable in the following website:
http://www.nishitetsu.co.jp/bus/highway/gb/guide/sasebo.htm

admin answers:

Google obvi

admin answers:

I don’t know if you can get the SIM card at the airport (You can get a prepaid mobile phone there, though.)
but in Japan you can buy a SIM card at “b-mobile”.

Http://www.j-com.co.jp/en/index.html

http://www.bmobile.ne.jp/lineup.html

If you get a “talking SIM”, you can make a phone call, and if you get “b-micro SIM”, you can only access the Internet (and it’s cheaper).

Both types of SIM card, standard SIM and micro SIM are available.

The problem is whether your iPhone is SIM-free or not.
If you got one in the US, probably your iPhone is SIM-locked, which means it doesn’t accept other SIM card, whether abroad or in the US.