GitHub has open sourced Boxen used internally for automated configuration of Mac laptops, a tool that could be converted to set up Linux or Windows machines.
Xamarin, makers of the popular MonoTouch and Mono for Android platforms, have entered into the Mac App Store market with Xamarin.Mac.
OpenSim represents a freely available open source software system for modeling and simulation of movement. The system is provided by NCSSR (National Center for Simulation in Rehabilitation Research) which denotes a research department within Stanford University, California. The spectrum of possible application domains such as rehabilitation medicine, robotics, or games makes OpenSim interesting.
Version 2.6 of MonoDevelop, the open-source IDE for .NET and Mono development, includes several new features, the most notable of which are Git integration and support for the Mac platform via the MonoMac add-in.
GPU.NET 2.0 supports Mono, enabling building and deploying computational intensive applications for Linux and Mac OS X along the already supported Windows.
GitHub have launched a desktop client for Mac OS X called simply GitHub for Mac.
The MacRuby team's busy working towards MacRuby 1.0, recently with the 0.10 release which adds XCode 4 support. Meanwhile, the first applications written using MacRuby have shown up in the Mac AppStore. Also: MacRuby seems to be part of the upcoming "Lion", Mac OS X 10.7.
The Chameleon project has been launched by the Iconfactory to allow UIKit-based applications to be ported to MacOSX. This enabled Twitterific for OSX to share 90% of the code with its iOS version and ultimately permit Iconfactory to do simultaneous releases on the iOS and Mac App Stores.
MonoMac, the newest attempt at creating a GUI toolkit for C# on OS X, has hit its 1.0 release. MonoMac is designed to be much more consistent with other .NET/Mono libraries. This is done by offering a thicker wrapper around the Cocoa APIs that obeys the .NET Framework Design Guidelines.
Apple has released iOS 4.3, the latest version of its operating system for mobile devices. This is available for iPhone (4 and 3GS), iPod Touch (3rd and 4th generation) as well as iPad and iPad 2 devices, as well as Xcode 4 which includes the LLVM 2.0 and LLDB 1.0 toolchains.
Since Apple joined the OpenJDK project, a new Mac OSX port project has been created and has made available the first public builds of OpenJDK 1.7 for the Mac. As well as checking out the source, it's possible to download an installer from a community site to develop against Java 1.7 applications from Eclipse on OSX.
GPU.NET is a managed solution integrated with Visual Studio 2010 for .NET developers and aimed at creating calculation intensive applications for GPU.
Apple have just announced that they will be working with Oracle on the OpenJDK project. As part of the deal Apple will contribute most of the key components, tools and technology required for Java SE 7 on Mac OS X.
MacRuby 0.7 is out, with the usual performance and compatibility improvements, including Ruby 1.9.2 compatibility. To demonstrate MacRuby's tight integration with Snow Leopard's Grand Central Dispatch (GCD), the team has released ControlTower, a Rack-based web server. Also: with the new BridgeSupport, all native APIs can now be accessed and scripted.
As well as yesterday's back to the Mac presentation, Apple released a number of updates, including Java for 10.6 update 3, which brings the Java version to 1.6.0_22 and fixes numerous security holes. Significantly, though, in the release notes Apple signs its exit to the Java licensee space by making Java deprecated and hinting at its removal from 10.7 OSX Lion.