I have been using visual studio 2008 for a while now, and I just
found out how to turn on XSLT autocomplete! This is very handy for
any XSLT development, but especially nice for Umbraco
developers.
I found this blog post about
Hidden Undocumented Feature of Visual Studio 2008 - Dynamic XSLT
Intellisense which details some of the features of the
autocomplete - none of which are documented elsewhere as far as I
know. To turn on XSLT extensions you need to edit the registry as
documented in the above blog post and you're good to go. Definitely
a timesaver.
David