The owners of the Arsenal Mall, um, Project, today announced plans for a major revamp that will turn the old Army complex turned shopping mall into one of those new mixed-use residential/commercial/office complexes that are all the rage these days.

For those unfamiliar with the location of the new Arsenal Yards, its Web site pinpoints it as being "where Cambridge meets Boston."

OK, a press release from the developers does mention Watertown as the home for the planned 500 residences, 350,000 square feet of retail space and 100,000 square feet of office space.