Don Box confirms that we should go forth with confidence and use Web Services and ASMX; Whidbey, Indigo, and the future frameworks build on this infrastructure -- they don't discard it.
I'm not so sure about Remoting, however. Various sources indicate that Remoting, as we know it, will be different with Indigo and Longhorn and require “non-trivial“ programming changes. Any talk like that is enough to scare new adopters from a technology . . . is there anything definitive yet?
Happy .Netting!