We happy to announce that we just shipped an update to our RTW 1.0 bits with a set of bug fixes that have been reported on the forums and through our feedback channels.
Credential store - no longer do you need to use your password on the command-line, you can get it from the credential store - http://blogs.iis.net/jamescoo/archive/2010/02/07/webdeployment-tool-now-works-with-credential-store.aspx
Fixes for a bugs around mime maps, bitness detection and more
You can get the new bits at our extension page, http://www.iis.net/webdeploymenttool and in the Web Platform Installer.
Faith and the rest of the Web Deploy team