If you get "Media not found" exceptions on http://download.opensuse.org/repositories/openSUSE:10.3/standard/ (added by Beta2) ...
We changed the type from repo-md to SUSE-Tags.
To fix this:
- start YAST2 Installation Source - Click on "Edit" (Bearbeiten in german) of this source. - Click OK.
(the url stays the same)