By Nathan Olivarez-Giles Microsoft Corp. isn’t the only company introducing a new Windows 10 hybrid tablet-laptop this week. On Thursday, Dell Inc. revealed a trio of new XPS laptops, including the XPS 12: a tablet that docks with a sleek keyboard to become a laptop. The new XPS 13 and XPS 15 have their own bragging points: Dell claims it’s built the smallest 13-inch and 15-inch laptops on the planet.