After installing a few apps yesterday, well I thought it was a few, I found I had 1GB of space left, on a 32GB iphone 4! 
So decided in the end I don't really need TomTom USA, Canada, Western Europe, Middle East on there
so they had to go, along with 1-2 other apps and I have 5GB space left. I've installed some large games to test out but how useful would a 64GB iphone 4 have been?
Really dunno how I have used so much space, there aren't THAT many apps on there, something just doesn't add up...

So decided in the end I don't really need TomTom USA, Canada, Western Europe, Middle East on there

Really dunno how I have used so much space, there aren't THAT many apps on there, something just doesn't add up...