It doesn’t work. I always get the following message when starting up the application:

Either Apache or MySQL cannot run because another program is using it’s port.

MySQL successfully starts, so it appears that Apache is the one that is causing the problem. The Apache Error Log is completely blank, and the Instant Rails log has nothing meaningful other than the message given above. Any ideas?

Update: It’s definitely a bug. Uncheck ‘Verify that the ports are available before starting servers’ under Configure / Instant Rails and you should be good to go.