If you thought Lenovo would be sitting on the sidelines while Toshiba, Acer, ASUS, Samsung and other OEMs go after the ultralight notebook space, think again. Today Lenovo announced the IdeaPad U300, U300s, and U400. Pretty cool new consumer oriented machines. I can’t wait to see what’s coming in the ThinkPad line. In the meantime, here’s some info on the U400.