I installed the iOS 5.0 GM on Friday on my iPhone 4 and have played around a little with backing up to iCloud. I've already noticed that backups appear to be incremental (which is good) but I've also noticed that my latest backup size is always reported as 2.0GB, despite "Next Backup Size" being reported as 4.3 GB.
I tried the following:
1. Delete the current backup (my usage on iCloud is then correctly reported as zero)
2. "Backup Now" (which takes a while, as expected for 4.3 GB)
3. After the backup is complete, iCloud reports I'm using 4.3 GB (as expected) but "Backup Size" is still shown as 2.0 GB
Any thoughts? Is this just a simple bug or is there something else going on that I've missed?
I have exactly the same problem. The space taken up by my iPad (1) backups is about 7.8 GB, but it shows the Backup Size as 2.0 GB. My particular situation was that I had some problems with my original restore, and occasionally (as when I lose connection between iTunes-Mac and the iPad or when I have to restart iTunes), I get a message that my last restore did not complete; do I want to continue, etc. I have no idea if that's at all related to my iCloud incorrect Backup Size message but I thought I'd mention it in case others reporting the Backup Size problem might be in a similar situation.