During an internal town hall event earlier this week, Microsoft CEO Steve Ballmer and COO Kevin Turner spoke to employees about the recent $900 million writedown the company took for the Surface RT, reports The Verge. "We built a few more devices than we could sell," said Ballmer, in reference to slow Surface RT sales. Ballmer also went on to say that the company isn’t happy with its Windows sales, either. "We're not selling as many Windows devices as we want to." Microsoft has been heavily marketing the Surface RT as an iPad competitor in a series of negative advertisements