How to make a jailbroken iPhone appear un-jailbroken to network provider? I'd like to jailbreak my iPhone but have it appear to my network provider as if it isn't jailbroken. This should be do-able, but what do I need to do to make this happen?  

I have an iPhone 4 currently running iOS 4.2.

EDIT:  Canadian politics is tricky.  Part of the potential new copyright law would make defeating any sort of weak sauce encryption illegal. Essentially, the copyright holder would have it's rights fully supported, and as for the user, well they get what's left. This is going on at the same time as our bandwidth cap issues. I just want to be proactive, for when the "unforseen QoS problems" begin to arise here. So, not a neutral ISP situation.
The network provider can't see if it's jailbroken or not. They might be able to detect if you're using Skype over 3G or other non-3G apps but they won't be able to discover it by simply jailbraking it.