It is time to start preparing for the RTM of ASP.NET 2.0 and in order to do that I've had the team prepare a great paper that outlines the major changes that we've made since Beta 2.  Find it here: http://msdn.microsoft.com/asp.net/beta2/beta2rtmchanges/default.aspx#ide

Next week, we will be posting detailed API x API changes since Beta2 which should help give even more insight.  I hope you find this useful!