My reaction:

We were pretty awful until we went 1-0 down. We did wake up a bit after that but I feared it was too little, too late. It is annoying that too often we need a setback to wake us up, if we'd played for the first 20 minutes like we did the last 20 we'd have wrapped up the game before half time.

The pel was one of those ones which was definitely a foul but you rarely see given. It's funny to see the pundits and Spuds be so infuriated by a clearly right decision. They're conveniently ignoring the fact that the Norwich goal was from a free-kick which shouldn't have been given and that we were denied at least one pretty clear penalty on Theo.
Credit to Arteta for holding his nerve, I really thought he'd miss.

Good subs by Wenger, his starting line up was questionable but there was clearly one eye on Tuesday's game and when he brought on the cavalry it made a difference and won us the game.