We were worried that Microsoft might wind up with frenemies in the PC industry after introducing its Surface tablets. There hasn't been a lot of backlash so far, but the Windows 8 tablets clearly rankled some Acer executives -- they're lashing out at their OS partner in a very public fashion. Acer's EMEA senior VP Oliver Ahrens is accusing Microsoft of trying to copy Apple's business model and thinks the Surface line will struggle to get any traction. It could lead to a "defocus" at Micr
