One of the nicest things about Android is that vendors can place their own user interface on top of it to deliver a unique experience to customers. And LG is taking advantage of that. The company today introduced the Optimus UI 3.0 for Android 4.0 (Ice Cream Sandwich) devices it sells. A key ingredient in the new user interface is an enhanced Quick Memo feature, allowing users to use their finger to quickly take notes. In addition, Quick Memo information can be shared via social networks, or sent as a text message or e-mail. The update is by no means groundbreaking, but according to LG, will make it \"faster, simpler, and more convenient\" for its Optimus owners to get work done on the handset. That\'s achieved, LG says, by allowing users to now unlock the phone by dragging anywhere on the screen. In addition, the software features a new \"Pattern Lock\" feature that lets users present which functions will open after unlocking the handset. Some other additions to Optimus UI 3.0: a new Voice Shutter feature allowing users to snap photos with voice commands; an icon customizer for changing how certain application icons look; and a Download category for additional organization options. LG plans to release the Optimus UI 3.0 with the LG Optimus LTE II launching this week in Korea. The software will then make its way to the LG Optimus 4X HD in June.