Microsoft is serious about getting Windows XP to work on OLPC’s low-cost laptop, but the company still isn’t sure it will be able to make a go of it. In an interview, James Utzschneider, the general manager of Microsoft’s emerging market unit, says Microsoft has devoted about 40 employees and contractors to work on its effort. However, there are plenty of technical hurdles, he said. One of the biggest is the fact that the XO has no hard drive and only 1GB of built-in memory. The company concluded it needed at least 2GB of memory just for Windows and Office, so it convinced the OLPC folks to include an SD slot on the laptop’s motherboard.