Apple parrots that space is saved. The space saved in few MBs will be used by devs to add more bloat to the app and eventually we'd be back to square one. It also stops iTunes App syncing. Just look at Facebook App. It started with 10 MB few years back and now it's a whopping 90 MB. Eg. If Facebook thins it's app to say 60 MB, within 2 years it would be back to 90 MB. But 16 GB devices will still be 16 GB. The writing is on the wall. App Sync is another marketing term Apple has used to market their shameful 16 GB devices to unsuspecting buyers. Practically it is useless.