My girlfriend is in the states right now and she's bringing back an Iphone for me. I have a couple questions concerning the iPhone: 1. I will of course unlock my iphone, and install 3rd party apps. I am however scared that installing too many apps will slow the phone down. Anybody have any experience with this? 2. After unlocking my iphone using anysim1.1, can I switch between sim cards? I will probably be moving to London next year for uni and will thus need and English sim. No problemo? 3. Which unlock method is best and most future proof? Jailbreakme or iNdependence?