What are some good practices to keep the iPad's battery lifespan as long as possible (ie how keep it holding a charge well for a long time). I've heard that you shouldn't leave it on the charger, that you should cycle it down once a month... but I'm not really sure what to believe.
Here's a link to Apple's official statement, which still leaves me with a few questions: http://www.apple.com/batteries/ipad.html
I left my iPad home today fully charged @ 100%. When I returned home from work and turned it on, battery was @ 84%....Thoughts???