Is there a way to limit processing power and network bandwidth for iPhone Simulator?
This question is essentially a CPU and bandwidth limiting tool for specific program on Unix. Any recommendations...?
As for network/bandwidth limitations, there's a really good tool called Network Link Conditioner included with XCode nowadays. Possible to use a number of presets as well as setting up your own configurations.
You can also check out: How do I simulate a slow internet connection (Edge/3g) on a mac. Is there a Firefox plugin?
UPDATE: Note that the Network Link Conditioner (as of iOS6) is available from the Settings > Developer menu on your iPhone (if it's marked as Use for development).