If you installed iOS 5 beta 1 on your iPhone, iPad, or iPod touch, It’s good to know that beta 1 has a time-bomb and is going to expire on August 4th.
This won’t be an issue for developers or those with proper access to the newest beta releases from iOS Dev Center as they can upgrade to the newest betas as they become available from Apple. This leaves those who had a friend activate their UDID or who used the VoiceOver tweak to run iOS 5 on an iPhone without a dev account – this could very well effect you. If you are running the beta without a dev account, I suggest downgrading from iOS 5 beta before this becomes a potential problem, you don’t want to be stuck with a useless iPhone on August 5th.
The expiration date was discovered and tweeted by jailbreak developer @ih8sn0w:iOS 5 official release is slated for this Fall