Can I get Google Wallet with root but w/out flashing rom? Also ota question

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http://androidforums.com – Hello everyone. I love my GS3 and I'm fine with ICS for now. Really the only reason I want to root is to get Google Wallet. Bloatware doesn't really bother me if I i hide it in the app drawer. I have a few short questions, if I root but don't flash a rom can I still install Google wallet using the edit Build.prop hack? If my phone is rooted and I have Google Wallet and I lose my phone, can Google still remotely reset/remove my information so people cant use my card? In a somewhat unrelated question that I have searched for but haven't really found a good answer to. I know that if you flash a (General)