What if my iphone is already jailbroken and unlocked, can i upgrade?

i have an iphone thats been jailbroken and unlocked with the 3.0 and im looking to upgrade. how can i do this without disrupting anything?

How does at&t iphone upgrade work when iphone is purchased from the Apple store?

I am going to pre order an iPhone 4 tomorrow, but there are rumors that the white iPhone will not be available for pre order through at&t. I would then purchase it from Apple. I am eligible for an upgrade so the iPhone would only cost me 200 dollars. Will I still get my upgrade [...]

How much does iPhone 3G cost without eligable upgrade or new line?

I am saving up for an iPhone 3G, then I am getting a piggy back sim so I can use it prepaid so I don’t have to spend a fortune on getting out of verizon.
When I went to the Apple Store it said $199 for 8GB, and that’s the one I am planning on getting.

ITunes Plus: Is the Upgrade Worth It?

Apple launched iTunes plus over a year ago, offering higher quality DRM-Free tracks through their iTunes store. For those of you who aren’t familiar with iTunes Plus, you’re probably asking what this means and perhaps even wondering how it will affect your iTunes music library. Well, the basics are pretty simple and it probably won’t [...]