Skype has released an update for its iOS applications adding support for Bluetooth audio on recent devices. Skype for the iPhone and iPod touch now supports Bluetooth headset devices on the iPhone 4, iPhone 3GS, fourth-generation iPod touch and the iPad 2; the iPad version of Skype has also been updated to add Bluetooth support for the iPad 2. Additional improvements in the iPhone and iPod touch version of Skype include a redesigned user interface with support for emoticons and enhanced video with image stabilization. Both of the Skype applications include bug fixes related a security vulnerability nd are now ad-supported—advertising will be shown to users who do not have a Skype subscription or Skype Credit in their account. Skype for the iPhone and iPod touch and Skype for iPad are available separately as free downloads from the App Store.