As referenced in Mac OS X Hints, Lion comes with a built-in wireless diagnostics application that will show you clear Signal & Noise level graphs as well as allowing you to capture raw packet data. Pretty cool (and somehow, not included in Lion’s feature list)! /System/Library/Core Services/Wi-Fi Diagnostics.app
I just discovered at my most recent client appointment that the latest Wacom drivers for their professional line (e.g. Intuos, Cintiq, etc) aren’t compatible with Mac OS X 10.7 Lion. Version 6.1.6-4 of their Wacom tablet drivers take an extra 40-60 seconds to start up after the user logs in, drawing in Photoshop and zBrush [...]
