iOS 5 Beta版本下载地址已经放出，需要注意的是部分连接还需等待正式开放后才可以下载，且需要开发者账号(ADC)。

Beta版本被认为是最接近零售版本的版本号码，所以这次iOS5的Beta版本几乎和正式版本无异，有兴趣的朋友可以自行寻找适合自己设备的固件进行下载。

[[31873]]

　　iOS 5 Beta For iPhone 3GS

　　http://adcdownload.apple.com/iOS/iOS_5_beta/iOS_5_beta__iphone_3gs__9a5220p.dmg

　　http://adcdownload.apple.com/iOS/iOS_5_for_it/iOS_5_beta__iphone_3gs__9a5220p.zip

　　iOS 5 Beta For iPhone 4

　　http://adcdownload.apple.com/iOS/iOS_5_beta/iOS_5_beta__iphone_4__9a5220p.dmg

　　http://adcdownload.apple.com/iOS/iOS_5_for_it/iOS_5_beta__iphone_4__9a5220p.zip

　　iOS 5 Beta For iPhone 4 CDMA

　　http://adcdownload.apple.com/iOS/iOS_5_beta/iOS_5_beta__iphone_4_cdma__9a5220p.dmg

　　http://adcdownload.apple.com/iOS/iOS_5_for_it/iOS_5_beta__iphone_4_cdma__9a5220p.zip

　　iOS 5 Beta For iPod Touch 3Gen

　　http://adcdownload.apple.com/iOS/iOS_5_beta/iOS_5_beta__ipod_touch_3rd_generation

　　__9a5220p.dmg

　　http://adcdownload.apple.com/iOS/iOS_5_for_it/iOS_5_beta__ipod_touch_3rd_generation

　　__9a5220p.zip

　　iOS 5 Beta For iPod Touch 4Gen

　　http://adcdownload.apple.com/iOS/iOS_5_beta/iOS_5_beta__ipod_touch_4th_generation

　　__9a5220p.dmg

　　http://adcdownload.apple.com/iOS/iOS_5_for_it/iOS_5_beta__ipod_touch_4th_generation

　　__9a5220p.zip

　　iOS 5 Beta For iPad

　　http://adcdownload.apple.com/iOS/iOS_5_beta/iOS_5_beta__ipad__9a5220p.dmg

　　http://adcdownload.apple.com/iOS/iOS_5_for_it/iOS_5_beta__ipad__9a5220p.zip

　　iOS 5 Beta For iPad 2 WIFI

　　http://adcdownload.apple.com/iOS/iOS_5_beta/iOS_5_beta__ipad_2__9a5220p.dmg

　　http://adcdownload.apple.com/iOS/iOS_5_for_it/iOS_5_beta__ipad_2__9a5220p.zip

　　iOS 5 Beta For iPad 2 GSM

　　http://adcdownload.apple.com/iOS/iOS_5_beta/iOS_5_beta__ipad_2_gsm__9a5220p.dmg

　　http://adcdownload.apple.com/iOS/iOS_5_for_it/iOS_5_beta__ipad_2_gsm__9a5220p.zip

　　iOS 5 Beta For iPad 2 CDMA

　　http://adcdownload.apple.com/iOS/iOS_5_beta/iOS_5_beta__ipad_2_cdma__9a5220p.dmg

　　http://adcdownload.apple.com/iOS/iOS_5_for_it/iOS_5_beta__ipad_2_cdma__9a5220p.zip

【编辑推荐】

1. 乔布斯现身WWDC 苹果发布全新Mac OS/iOS 5/iCloud
2. 十项升级超百项改进 苹果iOS 5全解析
3. 专题：苹果全球开发者大会WWDC 2011