Now with Bryan Singer at the helm, X-MEN ORIGINS: FIRST CLASS has a new writer in Jamie Moss, according to the Heat Vision blog [1]. The prequel will show the meeting of Charles Xavier and Magneto, as well as the early years of Cyclops and Jean Grey at the Xavier Institute for Higher Learning. The script will be based on Jeff Parker's Marvel comic miniseries. Lauren Shuler Donner and Simon Kinberg will produce. Previously, Josh Schwartz was attached as the writer.
Links:
[1] http://www.heatvisionblog.com/2009/12/bryan-singer-xmen-first-class.html