The iPad is perfectly sized and weighted -- bigger than a palm pilot or cell phone screen, but not as cumbersome as a laptop computer.
My Son, Simon has a collection of books on his desk, the "Who Would Win" series, which pits shark against whale, lion vs tiger, polar bear vs grizzly, etc. It reminds me of my new calendar situation: Although I am excited about the integration, portability and transferability of my newly adopted system, I must say that I miss the ease of use, somehow, of my old paper timer. Granted, the iPad offers a much more streamlined approach, without multiple sticky notes and assorted extraneous paper sraps hanging off various pages... on the other hand, there was something sort of, well, satisfying about getting out my coloured pens and making neatly-written, colour coded notes when time permitted. I find the reminders and notes on my iPad just don't call at me with the same urgency, somehow, that the handwritten remarks in my old daytimer did. That being said, the hastily scribbled entries I sometimes made on the fly using the old system were illegible, whereas every day in my iPad's calender is a neatly ordered list of notes.
Who will win: Paper daybook or digital calendar?
The jury is still out.