TechTown, Detroit's only research and technology park, will celebrate the opening of its first retail enterprise, The Java Exchange Café, on Friday, Nov. 3. "The launch of this innovative eatery is a significant milestone for TechTown," said Executive Director Howard Bell. "It confirms that we have generated a business community so successful that it is attracting retail tenants to serve the hundreds of employees working for new and established businesses in our park." Other activities are also planned for the day. For more information, visit www.techtownwsu.org.