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A comment on Over 700,000 Android devices activated each day.

Re:Over 700,000 Android devices activated each day by jr62 on Wednesday December 21, 2011 @12:04AM (#3376427)
How are they tracking unique activations? IMEI numbers seems the most likely possibility to me, but I wouldn't think Google would keep a list of all the numbers on their servers.
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Re:Over 700,000 Android devices activated each day by obviator on Wednesday December 21, 2011 @12:12AM (#3376446)
IMEI most likely. They can transmit the number as a non-reversible hash (MD5 or similar), that way the number never gets sent or stored as plain text.
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