Microsoft has been trying to get Windows users to adopt machines based on the Arm architecture (the same type of chips that power smartphones and other small devices) for years, with limited success. But the upcoming push in conjunction with Qualcomm might just do it, if a new Dell documentation leak is accurate. The new chips reportedly deliver jaw-dropping battery life. A leaked internal slideshow and spec list shows Dell’s own testing for laptops based on Qualcomm’s upcoming Snapdragon X architecture. These laptops are coming later this year from a variety of vendors. Crucially, this info i…