Apple iOS 5.1 Beta 2 finally addresses the iPhone 4S battery drain issue (Batterygate), the latest iOS Beta is currently available only for Apple developers and supports iPhone 3GS, 4, 4S, the iPads and the latest iPod Touches. Direct download links to these dev-files are posted after the jump.

Siri has been the top feature in Apple iPhone 4S and is not available officially and legally on older Apple phones like iPhone 4 and iPhone 3GS, hackers have been trying to get a perfect port of the technology to older devices and it seems the progress is good. In some good development on the porting front a video has not been uploaded to Youtube showing Siri working on an Apple iPhone 3GS - full video after the jump.

Despite some good signs on untethered jailbreak for iOS 5, there is no iOS 5 untethered jailbreak as of now. But thanks to a new tweak "SemiTether" at "Cydia" users can now boot their iDevices running jailbroken iOS 5 without needing a computer.

The semi-tethered jailbreak allows users reboot anywhere but with some limited functionality, "SemiTethred" users can use their phone, text, and many other features but will mostly sacrifice the "Cydia" tweaks which require a usual "Just Boot" re-exploit using "redsn0w".

The best thing about open-source and crowd-sourcing is that there is no limit to the amount of creativity and development a product/feature can achieve once subject to public development, thanks to SiriProxy Plugin hack independent developers are creating amazing stuff like controlling their rooms, computers, and even cars.

To get things a notch above iPhone Hacker robb created a "Siri Hack" for the Music Hack Day 2011, Robb used the SiriProxy and developed "Notorious Siri" plugin which raps the "Notorious B.I.G.’s Hypnotize song". Full video after the jump.

If you have successfully jailbreaked your iDevice but ended up with an "White Cydia" icon - here is the solution.

We shared an step-by-step guide on how to perform the tethered jailbreak for iOS 5.0.1 yesterday, and now some good news is coming from iOS developer "@pod2g" as he demonstrated the much-awaited, first-ever "untethered jailbreak for iOS 5" (untethered jailbreak allows users to reboot their devices without connecting to a desktop computer) publicly on video.

The recently uploaded video by pod2g shows an jailbroken iPod Touch 3G running iOS 5.0, with an untether exploit in iOS 5. According to pod2g the exploit found by him is an "userland exploit", meaning we could soon see an easy-to-use browser based jailbreak. pod2g will now try to jailbreak 5.0.1 and then start working on the iPhone 4, iPad 1, iPod Touch 4G, iPad 2 and iPhone 4S untethered jailbreak.

Apple iOS 5.0.1 update is out now and so is the redsn0w jailbreak, follow the detailed step-by-step instructions below to get your iOS 5.0.1 install jailbroken and install Cydia.

While Windows Phone 7 is not as popular as iOS or Google Android, the mobile-operating-system is gaining numbers every day and have been receiving rare praises from it's users thanks to the tile based "Metro User Interface". Citing the popularity Microsoft is betting high on the new "Metro UI" and will also feature same in it's upcoming Windows 8 Desktop OS, to provide other mobile-OS users a hands-on experience to the metro mobile interface the Microsoft team has created an demonstration enabling users to try our things from their Android or iOS devices.

"Siri" - the only exciting new feature introduced in Apple iPhone 4S has now been hacked and decoded by developers allowing them to program custom handlers for different actions. The "Siri Proxy" hack allows developers to easily add functionality to Siri making it do cool voice controlled actions not built-in natively by Apple.

Developer's can now create "Siri Proxy Plugin's" allowing users to issue custom commands via the "Siri - voice assistant", an excellent demo is shown below where a "plugin" allows the developer to control his computer and a thermostat.

Gone are the days when Apple's Mac OS desktop operating system was considered safe without an anti-virus solution, Mac OS specific malware threats are already in the wild and having an software security solution is demand of the time. Leading computer security vendor Kaspersky has predicted the demand and released "Kaspersky Antivirus 2011 For Mac" - Kaspersky Antivirus Scanner for Mac is designed to protect against all types of malware. The anti-malware scanner will not only detect and remove Mac viruses but also non-Mac viruses using an automatically updated malware database, when not scanning the software will not use any CPU resources ensuring maximum performance.