This is what they say on their website -
The Smart M:Panel is a targeted research panel comprised of Windows, Palm, and Symbian smartphone users who voluntarily install a software client on their mobile device that measures their real-world data usage. The software client, or M:Meter, captures activity around messaging, browsing, application usage and media consumption. Once installed the M:Meter operates with no user interaction. M:Metrics is focused on accurately capturing data usage and consumption while protecting our panellists privacy and ensuring our software does not adversely effect device performance.
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