After announcing that it had acquired smart thermostat maker Nest for $3.2 billion in cash last month, Google’s purchase was of course still subject to the normal regulatory approvals. Today the deal has finally been made official with the FTC granting approval of the acquisition through an “early termination” of the commission’s review of the purchase. It looks like the FTC has no concerns over the deal violating antitrust laws so Google shouldn’t have any issues closing the deal.