Romney's campaign on Tuesday announced an iPhone and Android application to alert supporters when Romney makes his vice presidential pick. The campaign promises they can find out who Romney chooses "before the press and just about everyone else (except maybe Ann)."
Users who download the free app are directed to enter their name, email, address, ZIP code and smartphone number.
The app also allows Romney's team to see users' locations, which could be used to target voters in battleground states.
Four years ago, candidate Barack Obama collected thousands of supporters' phone numbers with the promise that he would share his vice presidential pick by text message.