The chart above, generated from data produced by two ChangeWave surveys (iPhone survey here, Blackberry Storm here), shows user satisfaction levels among iPhone and Blackberry Storm owners a month after purchasing their device. The blue area in each stack corresponds to users who were ‘very satisfied’, red is for ’somewhat satisfied’, yellow is ‘unsatisifed’ and green is for those who couldn’t say either way. So, for the purposes of this analysis, more blue and less yellow equals a better result.

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