Japan has already 4G air cards, the U.S. still not.
By 2012 Japan will cut the second-generation phones, the equivalent of the European GSM: NTT DoCoMo, first 3G provider in the country, has also said that in the next three years will move its recent clients from the old standard to the more modern WDCMA, protocol that uses the services of the third generation.
NTT in [...]
If you don’t want to buy it now you can rent an air cards
It happens many times, you have to connect to the Internet but you don’t know how to do. You are in an area where there are no Internet cafes, or, as in the case of hotels, browsing on Internet it’s so expensive (up to 30 dollars for a 24 hour connection).
Either the only signal that [...]