Mockups show a "featured" ribbon on demo thumbs in listings. This indicates that a demo has been listed as featured on the home page, and would appear in listings everywhere.
Removing milestone until we figure out the best way to implement our demo contest feature set. Part of that work will require a way to flag and label demos as "finalist", "winner", "favorite", etc. So this can be a part of that effort.
As Jay mentioned, we already have flags on the Dev Derby. Doing something similar for the Demo Studio shouldn't be hard.
http://screencast.com/t/6POQz10Ht This appears to be in place.