These bits are what we internally call "RC0" and include most of the OM changes that we planned on making post Jan CTP (the Go-Live release). The bits are not as baked quality-wise as the Go-Live release (they were cut right after about a month of DCR's were coded into the product) but they look alot closer to the final product. Pointers below... WinFX Runtime Components: > http://www.microsoft.com/downloads/details.aspx?FamilyId=F51C4D96-9AEA-474F-86D3-172BFA3B828B&displaylang=en > > Windows SDK: > http://www.microsoft.com/downloads/details.aspx?FamilyId=9BE1FC7F-0542-47F1-88DD-61E3EF88C402&displaylang=en > > Microsoft Visual Studio Code Name "Orcas" Community Technology Preview - Development Tools for WinFX® (aka Fidalgo): http://www.microsoft.com/downloads/details.aspx?FamilyId=AD0CE56E-D7B6-44BC-910D-E91F3E370477&displaylang=en > > VS Extensions for WorkFlow: http://www.microsoft.com/downloads/details.aspx?FamilyId=A2151993-991D-4F58-A707-5883FF4C1DC2&displaylang=en > > WinFX RC February CTP "Readme": http://msdn.microsoft.com/windowsvista/support/relnotes/winfxfebctp/default.aspx > > > Ed Pinto was kind enough to post a b reaking change list from the Jan CTP ("beta2" to the Feb CTP "RC0"). (BTW, Just to confuse y'all, we will release what we call "RC0" as part of the Vista Beta2 release in a couple of months). > Read More...