Hi everyone,
There were a couple of small changes that we needed to make before release, and so we have released a 3rd release candidate of SilverStripe 3.0.0. In particular, people who had trouble installing on MAMP should try this version.
Download here: http://www.silverstripe.org/pre-releases/
Changelog here: http://doc.silverstripe.org/framework/en/trunk/changelogs/rc/3.0.0-rc3
Report bugs here: http://open.silverstripe.org/newticket?version=3.0.0-rc3
Thanks,
Sam