From the PlanetXbox360.com feature preview:
"Sigh…it only seemed like yesterday that we were introduced to the legacy of Commander Shepard, and his (or her) battle with an invading alien race set to dominate the galaxy. The original Mass Effect is still considered one of the best Xbox 360 exclusives around, while the sequel, though multi-platform, is a worthwhile follow-up, especially if you snagged the coordinating expansions. On March 6, 2012 this legacy concludes with the long-awaited Mass Effect 3. Bioware recently invited us down to its Comic-Con headquarters to take a look at the game."