So I've been running 4.0 on Tiger for awhile now. Wanted to move to 4.02 but it was only available for Leopard until just a few days ago. Now available for Tiger, so I just downloaded it. Wow. A LOT snappier. Loads pages a bunch quicker. I'm not talking about a small increase here. It's a lot quicker. I really wasn't expecting this. Maybe it's just the Tiger build on this, as I haven't seen any reports from Leopard users mentioning this speed increase, but it sure is a pleasant surprise. Very nice.