We'll keep our source anonymous here, but an Acer rep staffing the company's press event here at IFA just told us its funky Aspire R7 Ultrabook is "not selling so well." We're not sure if that's because it shipped with last-gen Ivy Bridge processors, or because the touchscreen sits above the keyboard, but either way, Acer is trying to boost its chances of success. This week, the company annou