Back in October Acer was the first company to release an Ultrabook, and since then it's added yet another to its collection. Until now, though, the lineup had one glaring omission: a smaller-screened model to complement those two 13-inch PCs. Well, no more. Here at Computex 2012, the outfit just announced the Aspire S7 series, which includes a 13-incher as well as the company's first 11.6-inch Ultrabook. Unlike the original S3, which caught flack for its chintzy design, these two are made of unibody alumi
