Xavier Lange discusses features and concepts of Haskell. Haskell is a high-level, strictly-typed, and lazy functional programming language. This talk is geared towards Ruby developers who want to stretch their programming muscles.

Learn how to get started with RubyMotion, a new tool that lets you quickly develop and test native iOS applications for iPhone or iPad using Ruby. James Miller demonstrates how to create a project, configure it, manage dependencies, and get your idea into the App Store.

OS X Lion might be the world's most advanced OS, but we don't normally use it to host Rails applications. It can be pricey, hard to virtualize, and doesn't work well with Linux-based servers. Patrick Crowley demonstrates a breakthrough way to integrate OS X services into your app.

Why choose Postgres over the "other" open source database? Guyren Howe has the answer. He will demonstrate how Postgres can make building database applications easier -- including custom data types, custom functions, robust text search, and more.

Postgres has a powerful feature called rules that let you rewrite incoming queries. Rules are similar to triggers in Postgres, but much more efficient. Guyren Howe shows how to use rules in some common use cases.

Marc Leglise shows how to break up your large application.js into logical chunks, leveraging more power from the Rails 3 asset pipeline. Building on last month's talk by Rafael Cardoso, this method allows you to separate concerns about download sizes from triggers for page-specific javascript.

Mark Ranallo explores writing command line applications for the Unix programming environment, including a basic overview, some tips/tricks, and Ruby gems that can help.

Rafael Cardoso shows how to load page specific javascript, while still using the default configuration for the asset pipeline in Rails 3.

It happens to a lot of us: you're doing a good job as an engineer, you've been around the company for a while, and BAM! You get "promoted". Well, it turns out that like engineering, management takes skill and practice. You can't just expect that because you're smart you'll be good at it. Nic Benders from New Relic talks about what some of those skills are, and how to work on improving them.

Have you heard of the infamous Global Interpreter Lock that prevents Ruby from being webscale? Are you so scared you might switch to Node.js? Well, before you do, learn more about what the GIL is, what it does, and why it isn't being removed. Matt Aimonetti explains.