Apple released the iOS 5 beta 2 for developers a few days ago without any official announcements or whatsoever. Not that we expected something like that, it’s just another iOS beta version after all.

Still many users have already upgraded with the first beta (one way or another) and are surely eager to get the new one. I’ve already installed and explored it and here is a quick summary of the changes I found so far.
Just as expected, although disappointing, you can’t install the iOS 5 beta 2 via the Update option. You’ll have to use the (custom) Restore function so back up your device before doing that (unless you rely completely on an iCloud backup).
Cellcrypt released a version of its voice encryption software for Apple’s iPhone on Tuesday, adding to its portfolio of software to prevent eavesdropping on calls.
The product, called Cellcrypt Mobile for iPhone, works with iOS4 on Apple’s iPhone 3GS and iPhone 4. It is one of two voice encryption applications listed in the App Store, although there are other voice encryption applications for the iPhone platform from vendors such as Goldlock and SecurStar.
The iPhone application works in the same way as Cellcrypt’s products for other platforms. It’s a VOIP (voice over IP) application that uses either Wi-Fi or an operator’s data channel on either GPRS, EDGE, 3G or satellite networks to transmit voice.