That big, $90M venture funding round for Scottsdale, Arizona-based IO Data Centers this morning? Just a funding injection before an expected, 2013 IPO for the company, according to a report from FORTUNE this morning. IO announced the funding, which was led by New World Ventures, this morning. The company develops modular data center technology, with the round bringing its total raised to $250M. Fortune said that IO's CEO, George Slessman, said the firm is planning to be a public company and list in 2013.