It's been four years since the first Microsoft Surface came out back in 2007, and it looks like it'll be five before we see an update: Mary Jo Foley at ZDNet is reporting the next-gen Surface, the Samsung SUR40, has been delayed until January 2012, after originally being slated for this year. Foley says the delays are due to software problems inside the SUR40, which wouldn't come as a huge surprise, given how buggy it was when it was shown at CES in January. The $7,600 device runs Windows 7 on a 2.9GHz dual-core AMD processor with a 40-inch, 1920 x 1080 display, and is targeted for commercial use: Fujifilm, Red Bull, and Sheraton Hotels have all signed on to use the SUR40. Of course, we're still waiting on the consumer version of Surface that Ballmer said in 2008 would be out in five years — but we're not holding our breath.