Rate and Improve your computers Performance
in Windows 8 Developer release is the same as Windows 7 at the moment and i think it will stay that way because Microsoft does not want to divert to much from Windows– here is a link of  some of the new  features that are added to Windows 8

It is only in development stage so more will added and some things may be removed our changed Windows has a lot of catching up to do to compete with the other Operating Systems

Demystifying Windows 8’s changes, additions, and features