In order to support 64-bit iOS and OSX, Xamarin has to make some breaking changes to the way it implements the mapping between C# and Objective-C libraries. Rather than being mapped to 32-bit types, NSInteger and CGFloat are now mapped to the new platform-specific data types nint and nfloat.
Brian Sam-Bodden, founder of Integrallis, gave a demonstration at the Barcelona Ruby Conference on how to leverage RubyMotion and open source 2D graphical libraries to quickly create 2D games for iOS in plain Ruby without any knowledge of Object-C.
Objective Sharpie is the child of Aaron Bockover. This tool creates C# bindings suitable for use in Mono for Objective C SDKs. Objective Sharpie works by using Clang to parse Objective C header files. Since the process is automated, and has full access to the header, binding errors should be non-existent for most libraries.
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.
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.
This week, the Number Resource Organisation, the official representative of the five Regional Internet Registries and who oversees the allocation of IP addresses, announced that less than 10 percent of IPv4 addresses remain unallocated. If it's not addressed in the near future, the ramifications could be serious for the world wide web.