Apple has Siri feature, Samsung has S Voice feature in Samsung Galaxy S III and now today LG too have it, and announced it as "Quick Voice".
LG’s new intelligent voice recognition service, "Quick Voice" allows users to interact with their LG smart-device with voice only - the voice call, text, contacts, alarms, calendar, maps, weather, and so on.
With the help of Google translate,
"Quick Voice" features the end of June "Optimus view” is applied through the upgrade in July," Optimus LTE Ⅱ' services will be even.
Source:- LG press release