WiX v3.0 is finally out of beta. Bob Arnson and Rob Mensching have the announcement up on their blogs.
WiX is a great tool that I recommend for packaging WHS Add-Ins for deployment. The XML configuration is nice and clean, and you have total control over the MSI package that comes out the end of the process. Plus, I have plenty of examples of WiX code scattered throughout this blog!
If you’ve been using a beta or daily build of WiX 3.0, you should download the update now.