Sony Ericsson’s New Android Phone Is Sleek, But Has a Hole

Sony Ericsson today announced its Xperia X10 smartphone, based on Android, which features a customized software layer called UX built on top of the open-source operating system. It’s the first of a family of smartphones that the company plans to deliver in the first half of next year, and won’t be available until then. While it has some high-end features that could help it compete with the much-hy...