I may have mentioned this in another thread, but re: business trips: if you have a separate stylus, send it through airport security in the same bin as the laptop, or at least somewhat separate away from your regular pens/pencils. I was stopped and had my purse searched twice, but didn't realize until the second guy told me it was the thing that looked like a pen but was full of circuitry that looked suspicious. (They even tested all my regular pens to make sure they would write.) Yesterday, I put the pen with the edge in a bin and no problems.