The problem with these type of solutions, including restore, but don't set it up from your backup; is that they defeat the purpose of having an iPhone in the first place.I know that the average user has a 16 GB phone and doesn't use the phone for anything other than goofing off and playing games.
I have a 64 GB iPhone five, I had a 64 GB for 4s. Before that 32 was the biggest if you could get and that's what I thought. I use my phone every day in my practice. It is filled with apps and data that I need. I have dictation, memos, messages, and all manner of other documents in various apps that I need to have access to. I need my phone to correctly restore from my back up. Anything short of that is simply- unacceptable.
There are many users like me in the world. And every year, every time there's a new OS or new hardware which has an issue with the battery or some other syncing problem someone says, "Well dummy, just restore your phone and don't sync your backup. Problem solved!" Enough already!
Like each and every time before, it will take Apple a while figure out what's going on and they will offer a software update. 6.01. It will fix the problem demonstrating- once again that it wasn't in people's heads and that while there maybe some intermediate workaround, [that works for some people, under some circumstances] it was a real problem that needed to fixed.
So all of these know what all comments are just useless. It's a lithium battery? Really? Wow, tell me more. Here's how it works, you take your phone out of the box, you charge it and unless there's a software or hardware problem you get what is considered to be standard battery life. When that doesn't happen, it's usually because something has changed, somethings new. There were fewer issues with the iPhone 4S and there were with the iPhone 4. Because it was largely the same piece of kit. If you buy your iPhone 5 in May I guarantee you won't have these problems.
I know it doesn't feel like it because the upgrade schedule is so regular and these devices tend to be very well-made; but this is life on the bleeding edge. A new piece of hardware comes out untested and it will have problems. I just hope that Apple fixes it very quickly!
Sorry for any typos, this was dictated not read.