1) Index
2) It's an electronic device rain does render it useless. If it's under cover so can the rulebook.
3) They make rulebooks with larger text.
4) Remote official can be in booth or reached via another electronic device called a telephone.
5) Pure
PR and nothing more
6) If they aren't looking it up in the rulebook now they damn sure won't be looking it up on a PDA.
7) Never, ever have I seen a fan using a PDA to look up rules at a game of any type. They wouldn't understand them even if they did.
8) Every one you come up with would apply to a rulebook, 'cept it don't needs no battrees.
9) A new technology is not necessary, a system is already in place that works very well. You may have heard of it, it's called a Protest.