XO Communications announced today that they have significantly expanded their nationwide Ethernet services footprint.   In a briefing at Interop today, I spoke with XO’s Brad Boddicker, regional vice president for the company’s Western region, and he told me that XO is now capable of empowering over half a million business locations in 75 major metropolitan areas across the United States with next-generation Ethernet services.   Boddicker also mentioned that XO can deliver via a number of different vehicles as well, including fiber, Ethernet over copper, and fixed broadband wireless capabilities.   The company has been doing a number of interesting things lately, including the launch in April of XO Anywhere, a service designed to improve worker productivity with mobility and unified communications features. The service enables employees to use any device as their XO office phone, which is a real benefit for companies with large mobile and distributed workforces.