It appears that ASUS is finally ready to show its line of thin-and-light machines some Sandy Bridge love. Swedish site Technytt claims to have the exclusive scoop on a trio of laptops -- the U31SD, U31E, and U36SD -- that will find their way to retail channels in late May. The U31SD is already showing up on the ASUS site, with the option of either a Core i5 2410M or Core i3 2310M , and a ch