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A late addition to the Dodd-Frank Act--the regulation meant to address the roots of the financial crisis--took effect this month. But it doesn't always help merchants.

A late addition to the Dodd-Frank Act--the regulation meant to address the roots of the financial crisis--took effect this month. But it doesn't always help merchants.

1. Microsoft has closed its guerilla design/thinktank lab Pioneer Studios--the group behind the highly-praised but then cancelled Courier tablet concept.