I may be a dinosaur, but don't forget about netbooks. I have a asus eee pc 1005ha (10 hour battery life) that I took to an assisted care living facility (ACLF) a couple weeks ago to make rounds. I like a physical keyboard as I type fast. Previously I had lugged a bag of paper charts. What a difference. The ACLF is blanketed with wifi. Much easier using the netbook via logmein free. My notes were finished back at the office. Next trip I will try using an iPad / logmein ignition (if my wife will let me borrow it for the day - haha).