In the recent marketing plan to change the Android Market to Google Play, a new Terms of Service contract comes with it. It was seen that the name Android Market is too constricting of Google's vision of a place for not only Apps, but music, eBooks, etc.
Upon any person reviewing the Terms of Service, under section 2.4 "Google retains the right to remotely remove (applications) that ...violate the Developer Distribution Agreement or other legal agreements, laws, regulations or policies." By reserving this right they, Google, are advertising their capabilities to infiltrate your smart phone device without notice to you and remove, change, or invade whatever privacy you believe you hold. There presently does not seem to be a move to act on Google Play's invasion of privacy. Read the full article.