iOS 5 Beta 5发布，不过功能没有什么变化，只是修复了bug。暂时官方只发布了mac版，并无windows版本。
iOS 5 Beta 5固件下载：
iPad 2 (Wi-Fi)
http://devcenter/download.action?path=/ios/ios_5_beta_5/ios_5_beta_5__ipad_2__9a5288d.dmg
115下载：http://u.115.com/file/aq3lmw06
iPad 2 Wi-Fi + 3G (GSM)
http://devcenter/download.action?path=/ios/ios_5_beta_5/ios_5_beta_5__ipad_2_wifi__3g_gsm__9a5288d.dmg
115下载：http://u.115.com/file/e6u9biyh
iPad 2 Wi-Fi + 3G (CDMA)
http://devcenter/download.action?path=/ios/ios_5_beta_5/ios_5_beta_5__ipad_2_wifi__3g_cdma__9a5288d.dmg
115下载：http://u.115.com/file/bh5oxpgb
iPad (Wi-Fi and Wi-Fi + 3G)
http://devcenter/download.action?path=/ios/ios_5_beta_5/ios_5_beta_5__ipad__9a5288d.dmg
115下载：http://u.115.com/file/aq3lmnxi
iPhone 4 (GSM)
http://devcenter/download.action?path=/ios/ios_5_beta_5/ios_5_beta_5__iphone_4_gsm__9a5288d.dmg
115下载：http://u.115.com/file/dnctqapt
iPhone 4 (CDMA)
http://devcenter/download.action?path=/ios/ios_5_beta_5/ios_5_beta_5__iphone_4_cdma__9a5288d.dmg
115下载:http://u.115.com/file/bh5oxlwd
iPhone 3GS
http://devcenter/download.action?path=/ios/ios_5_beta_5/ios_5_beta_5__iphone_3gs__9a5288d.dmg
115下载：http://u.115.com/file/cln5psd5
iPod touch (4th generation)
http://devcenter/download.action?path=/ios/ios_5_beta_5/ios_5_beta_5__ipod_touch_4th_generation__9a5288d.dmg
115下载：http://u.115.com/file/aq3ldd8f
iPod touch (3rd generation)
http://devcenter/download.action?path=/ios/ios_5_beta_5/ios_5_beta_5__ipod_touch_3rd_generation__9a5288d.dmg
115下载：http://u.115.com/file/aq3ldigo
相关下载：iTunes 10.5 beta 5网盘下载地址
http://www.weste.net/2011/8-7/iTunes-10.5-beta-5.html
相关越狱信息：iOS 5 Beta也能越狱了！越狱利器雪风最新给力