Difference 6.30 to 6.40

Hi folks,

as 6.30 seems to be cancelled for public release I wonder what is the main difference between 6.30 and 6.40. E.g. will a WebDynpro ABAP runtime be delivered? Is there a feature-listing somewhere around or some background material ready for the WAS 6.40? Also does the new beta2 (which I am downloading at the moment) include any of the new features of WAS 6.40 or is this strictly separated from one another?