I bring you word of a massive XBLA achievement update (the shamlessly stolen headline probably tipped you off, huh?).
Xbox360achievements.org has come through again with achievement details for Hexic 2, Marathon: Durandal, and War World. No pretty pictures to look at, but plenty of interesting things to ponder after the break.
Ironically, Hexic 2, contains the achievement Marathon Master for completing a cluster, line, or flower of black pearls. Marathon: Durandal, on the other hand, has a couple achievements with very cryptic clues such as "Vidmaster (35pts) : I give no secrets."
Also of note: War World will be launching with 15 achievements for a total of 243 points. There is something strange afoot here as that violates all the current rules. My bet would be that 12 achievements for 200 points will arrive in the "base game" and the rest will arrive under the new DLC rules. However, the achievements are broken into three sets of level-based achievements for Normal, Hard, and Extreme difficulties. Strange indeed.