I just downloaded and installed Web Matrix beta.
I am really liking the razor view engine.
Not so much the Web Matrix IDE.
Is there any way to install razor view engine for use in the Visual Studio without installing WebMatrix?
What's currently offered in WebMatrix isn't really a ViewEngine in the current MVC sense, it's a parser/templating engine, more like T4 templates, in fact.
That said, Razor most certainly will be incorporated as a ViewEngine option in MVC3, and should be included in the next Preview release of MVC. (see ScottGu's post: http://weblogs.asp.net/scottgu/archive/2010/07/02/introducing-razor.aspx)
So, in short, you'll be able to use Razor as your ViewEngine in MVC very soon.
EDIT: Also, check out another answer of mine for some steps on creating a full Razor ViewEngine in VS 2010 now. A few manual steps, but you get get going in minutes.