yeah right keller

Jonathan Christopher points out the Network Link Conditioner pref pane, new in Lion:

This is a thing of beauty for Web developers the world over; built in network throttling on an OS level.

I didn’t know about this, and it looks super-useful. Aside from web development, you can use it to test iOS apps, either in the Simulator, or by connecting your iOS device to the ad-hoc wifi on your Mac.