Apple have been having quite the hard time lately, with iOS updates flying thick and fast lately. iOS is rumored to be hitting some time next week, with another attempt from the Cupentino-based company to fix their battery life issues that went unresolved with iOS 5.0.1.
Battery drain has been a serious, recurring issue with iOS updates, although most devices are usually unaffected. iOS 5.1 is set to include a bunch of upgrades to Siri, expanding its functions. iOS 5.1 should include the ability to take a photo or record video using voice commands, as well as toggling Wi-Fi and Bluetooth on or off. iOS 5.1's release date? TBA.
Apple officially considers Siri to be in a beta state, with some functions unavailable to those outside of the US and currently only supports just a few languages. Siri currently installs on just the iPhone 4S, but it has been hacked to work on older products.