Before I throw admin rights around we should all try to agree on the best way to use the page.
I've created several threads in the discussion area. Each is clearly labelled as either PROJECT: or AVAILABLE NOW:
If anyone makes a new project thread it would be best to keep to that formula.
As the page, I've 'liked' Aetherbyte, but I can't like Frozen Utopia because it's a group (groups are pretty crappy in Facebook, you should consider changing to a fan page).
Would the leaders of the various dev groups feel it was advantageous if they were also admins on the page? Posting as an admin will send the status update to everyone's news feeds, whereas posting normally will not. As long as noone makes a big mess of the page, I think this is an option.
Anyone is free to post images of their projects, make a new album etc. As I'm personally involved with several projects, I'll only post what has been announced or shown in other places, like these forums etc.
I've created a thread to list developer homepages/blogs etc in. I've not added any, so if you want people to know, pop along and put in your details.