Double Shot #1150

Why I'm Not Using RubyMotion in Production - Summary: GC issues.
Test-drive Rails 4 With BitNami - Probably the easiest way to bring up a new Rails 4 test environment.
Nitrous.IO is now in public beta! - Slick-looking online dev environment open to all, with a free tier that's just large enough to be useful.
Hakiri - Command line security scanner for various technologies you might find in your Rails stack.
Tixef - Online code review tool with language aware diffs and other syntax driven analysis features.