As a safeguard for troubleshooting OS issues and testing software (particulary our own stuff) it is nice to be able to unload WB and know the OS is operating 'unaltered'.
With WB5 you cannot do this and still use the luna styles (that is, it is not handing back control the the default XP skinning engine).
Otherwise it is looking really nice and is noticeably faster. Great work. Looking forward to the final release.
