Being the stock Android smartphone means that you will get the latest updates. Right now, Android 4.2.2 is driving the device. At times, the handset has been hard to find with both LG and Google blaming each other for the shortages. Early this year, the phone had its longest period of availability in the U.S.and T-Mobile was even able to put the device on sale. While Google is now taking orders for the phone in the U.S., it won't ship until March 29th.
source: Google via AndroidCommunity