Principled Technologies and the BenchmarkXPRT Development Community have released a preview of WebXPRT 4, a free online tool that runs in almost any browser and gives objective information about how well a laptop, tablet, smartphone, or any other web-enabled device handles common web tasks. Anyone can go to WebXPRT4.com to easily run an evaluation test on their own device. The WebXPRT 4 Preview contains HTML5, [PR.com]