I've download apps for my iPad on both my iMac and MBP. If I sync my iPad on my Imac to load apps, I lose whatever apps I installed when I synced to my MBP and vice versa. Is there a way to sync up on both computers and not lose any apps? Many times I'll be on my MBP and on a whim decide to download and install an app only to forget that If I sync up, I might lose apps when I synced up on my iMac. Would it be easier to just centralize my apps all to my iMac?