I've been having an issue (same issue over and over) installing BETA 3 since last night. I thought it was the downloaded file I got, was corrupted or something but no. I've got a screen shot, which should describe things better. I'm on MAMP 2.0.3, OS X Lion 10.7.1 and stuff. Please take a look,
Thanks guys :)
http://imageshack.us/photo/my-images/840/screenshot20110902at520.png/
Comments
http://status.net/open-source/issues/3298
It's been fixed in the current git version, butt you can just make the change suggested in the comments here in the meantime.
Edit: never mind. PHP 5.3.X version seems to fix it. Can't believe myself :P