I'm after a bit of advice please... I have a desktop, and a new uMBP. The PC desktop is what I use to sync my iPhone. Is there any way to use both machines to sync my phone with? The thing is I don't have any applications on my MBP, but I thought it would copy the apps from my iPhone to my second iTunes library? Would it also copy the missing mp3 files across to my new MBP? Basically I'm wondering whether it's a good idea to have two machines that sync with my phone. Thanks all, I'd appreciate any tips.