The current project summary takes knowledge on Linley's Dungeon Crawl for granted, i.e. there's no direct mention that we're talking about a game, let alone any further description.
With Stone Soup becoming more popular, this introductory page just won't do any more.
As a starting improvement I suggest mixing in the game description from the website in there, e.g.
"Dungeon Crawl Stone Soup is a fun, free rogue-like game of exploration and treasure-hunting in dungeons filled with dangerous and unfriendly monsters in a quest for the mystifyingly fabulous Orb of Zot. It is a variant of Linley's Dungeon Crawl that's openly developed and invites participation from the Crawl community.
The intent of the project is to provide a "reference" platform whose priorities are maximum portability and rapid integration of bug fixes from other Dungeon Crawl variants."
Also, beginning with version 0.4 we should start adding announcements of new versions to the News page, for historical reasons and also as a cheap way of advertisement. (I'll try to keep this in mind when we reach that stage.)