I own the original MBA (3 years in September) ---- it has been very good to me - albeit a bit on the slow side recently..
However, my dog knocked it off the coffee table twice around 2 months ago - it was fine.
All of a sudden, two days ago (~ 12 hrs post ordering my new 2011 MBA), the screen hinges snapped!
Going to get this repaired so I can pass down the computer to my mom.
Overall, great experience with my MBA!!
M.