For those of us who have multiple machines or re-install often and don’t like to download every time using the web installer, there is an ISO image for the Windows Phone Developer tools
Download using this link.. http://go.microsoft.com/fwlink/?LinkId=201927.
This is the RTM version ( so what we released around 9/15). Don’t forget to install the October update for the tools after you have installed the tools from this iso.
Also, if you are a VB developer, you will have to get the VB tools support that RTMed yesterday
Happy Windows Phone coding!