Andy Rubin has tweeted some stats about the Android platform during the Christmas period this month.
UPDATE: There were 3.7M Android devices activated on 12/24 and 12/25.
— Andy Rubin (@Arubin) December 28, 2011
He said that around 3.7 million Android devices were activated during the 24-25 December period.
This is much higher than the average Android activations on a daily basis.
Apple iOS activations are also said to be around similar levels. Could be more but Apple is yet to release any statement.