Beautiful new high-rises were going up everywhere. There's a neat "secret" park on top of one of the buildings (Cambridge Center Roof Garden). Extremely easy to cycle around, and by far the best pedestrian-friendly traffic controls in the entire state.
However, unless you worked in one of the office buildings, or could enter MIT legally, there were few places for "outsiders" to wonder in, hang out, and hack. Is this still the case, or has it since become more welcoming to laptop nomads?