If you're someone who takes a great deal of pride on their Gamerscore or Trophy level and you're a fan of Borderlands 2, then we have just the thing.
Courtesy of Xbox360Achievements, here's a partial list of Achievements for Borderlands 2. Before you read it, keep in mind that some of hte things listed might be considered spoiler-ish to some people. Also of note, while the ones listed are just the Achievements, I'm presuming the Trophy list is the same — as it usually is.
Challenge Accepted
Completed level 1 of all non-level-specific challenges with a single character
Goliath, Meet David
Allowed a Goliath to level up four times before killing him
Went Five Rounds
Completed Round 5 of any Circle of Slaughter
Not Quite Dead
Reached Level 5
Better Than You Were
Reached level 10
Always Improving
Reached level 25
For the rest of the list along with its corresponding icons, click here.
There's also a host of "Secret Achievements" that I presume will be tied in to the game's story; even if weren't, at least there's still a few mysteries left for you to solve, no?
Borderlands 2 is scheduled for release on September 18 for the PC, Xbox 360 and PS3.