Turns out those of us who expressed skepticism about the iPhone’s success in Japan were wrong — it’s huge here. It’s conquered nearly half of Japan’s smart phone market, according to this Fast Company article. Someone told me last night that it was 7 out of 10 now. Either way, a combination of great marketing, difficult-to-use Japanese cell phones, and other factors have made the iPhone a big hit, and not just among geeks anymore. Case in point: My brother has one, my dad just got one, and my mom is getting one.