Revolution in mobile-crazy Japan: Market research firm GFK Japan is reporting [JP, PDF] that more smartphones than feature phones have been sold in the country between March 28 and April 3. To be more concrete, 50.1% of all devices sold in Japan in that week were iOS, Android, Windows or BlackBerry phones (see chart).

GFK says that the main driver here was Android, with carriers having started to offer more and more models in recent months. Unfortunately, GFK doesn’t provide absolute numbers.

The report doesn’t come as much of a surprise, seeing Android phones have been topping the sales charts in Japan, for example the Galaxy S (in January) or the NEC Medias (in March).

This site [JP] provides a good, up-to-date overview of the smartphone situation in Japan.