The previous page is sending you to http://www.amazon.co.jp/ios4-%E3%81%8A%E3%82%80%E3%81%A4%E3%83%BB%E3%82%B1%E3%82%A2%E7%94%A8%E5%93%81-%E3%83%99%E3%83%93%E3%83%BC-%E3%83%9E%E3%82%BF%E3%83%8B%E3%83%86%E3%82%A3/s?ie=UTF8&keywords=iOS4&rh=n%3A345889011%2Ck%3AiOS4&page=1.

 If you do not want to visit that page, you can return to the previous page.