A feature coming in Lollipop will prevent unauthorized factory resets by asking for the user’s Google credentials. If enough devices out there are difficult or impossible to wipe, the incentive for stealing them could go down dramatically.
Google has stepped forward to announce that they will enable device encryption by default in Android L. Taking user security a step beyond remote locate, lock and wipe as can be found now through the Android Device Manager.
Google adds call-back button to Android Device Manager lock screen
A "kill switch" bill went before California state Senate this week. The bill would have made it mandatory for device manufacturers to install a method for rendering stolen devices inoperable. After the votes were tallied, 19 in favor and 17 against simply did not meet the 21 votes needed to pass the bill.
Android Device Manager updated, adds password prompt and minor bug fixes