Answer a few survey questions from time to time, and receive credit to spend on the Google Play store with the company's Opinion Rewards app - available to download now, exclusively for Android users.
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Windows 10 ISOs now available to download
Poll: Is Windows 10 ready for its launch?
Hands-on: Phone Continuum in Windows 10 Mobile
windows 10 phone continuum
Hands-on: Windows Hello biometric log-in