Make no mistake, one of the biggest trends you'll see this fall is PC makers slapping touchscreens on their current machines so as to make them a little more Windows 8-appropriate. And Acer is no exception: the company is introducing touch-enabled versions of its existing Aspire V5 and M5 laptops, both of which will go on sale this month. Starting with the M5, it's the touch-enabled version of the M5 Ultrabook we reviewed earlier this year. Though the standard version is
