I'm developing a web application for mobile browsers. Right now most of development is done on local machines (with local apache) and I'd like to test how it behaves in low bandwidth and even high latency environments. I don't need to use apache as there is little server side things for the moment. Do you know any good tool?
You may want to give Sloppy a try.
UPDATE: @SamSaffron posted a cool gist: https://gist.github.com/2132065 to inject 300ms latency into the network stack
#!/bin/sh
ipfw -q -f flush
ipfw add pipe 1 in
ipfw add pipe 2 out
ipfw pipe 1 config bw 512Kbit/s queue 30 delay 150ms
ipfw pipe 2 config bw 2Mbit/s queue 10 delay 150ms
ipfw -q add allow all from any to any