I had a look at the The Universal Guide to Jailbreaking thread. Three questions that didn't get answered there: 1) If I jailbreak my phone: can I still purchase and sync apps via iTunes? i.e.: is Cydia just another alternative, or is it the ONLY way to purchase apps? 2) Which jailbreak would you recommend for an iPhone 4? 3) The only reason why I'd like to jailbreak my phone is to install an app similar to "Little Snitch" or extensions like Ghostery etc... to prevent data-mining. Can anyone recommend a good app for this purpose? Thank you!