16GB iphone 4 says 23.8GB internal?!?

[MacrossPrincess]

I realized my 16GB iphone 4 says it has "9.64GB out of 23.8GB" memory left when I went to copy pictures off of it, does this mean its really a higher capacity but locked in for the OS? I wouldnt see why iOS would need 8GB of dedicated space anyways.
Heres a screenshot:

http://dl.dropbox.com/u/18562797/24GBiphone16GB.JPG

[SirNerdsy]

Different maths. Some people call one kilobyte 1,024 bytes. other call it 1,000 bytes. As you add more and more, the difference increases a lot, eventually there would be a difference of several gigs.