Mobile Ruby developers get a new version of Rhodes: the 2.0 release brings many new features, and also puts the framework under the MIT license. іPhone developers will be glad to hear Rhodes apps are being accepted into the AppStore. Also: Android developers and users can use JRuby with Ruboto and Ruboto-IRB.
The data binding in WPF and Silverlight is amazing in all regards. Its power and flexibility are beyond compare. Unfortunately its resistance to traditional debugging techniques is equally impressive for the wrong reasons. There is no way to really step through the data binding process, but we collected some other techniques that developers may find useful.
Windows Presentation Foundation is quickly becoming well known for the ease in which memory leaks are introduced. Most of these leaks seem to come from the use or misuse of weak references, upon which WPF’s data binding technology is based. In the recent set of hotfixes many of these leaks are fixed.
Microsoft has posted the results for 192 tests grouped in 8 categories for HTML5, SVG 1.1, CSS3, and DOM Level 2&3 showing that IE9 Preview passes all of them with flying colors while Chrome, Firefox, Opera, and Safari have mixed results varying from 0% to 100% depending on the category. The conclusion, that IE9 is the most compliant with W3C standards, is contested by Google, Mozilla, Opera.
Having modular code does not help when applications still have to be deployed in an all-or-nothing fashion. Prism addresses this by allowing you do deploy a WPF or Silverlight shell to the users separately from any specific functionality. Individual features are released out-of-band as modules that may be stored locally, on a corporate file share, or served up by a web site.
There is some confusion about when to use WPF and when to use Silverlight. Choosing the right technology for a project depends on precise requirements the application has and the differences between WPF and Silverlight’s capabilities.
MacRuby 0.6 is available now, bringing debugging and vastly improved Grand Central Dispatch (GCD) support. A lot of the core functionality has been overhauled, such as a new String implementation and a new thread-safe Regex library which replaces Oniguruma. MacRuby's now considered stable for Cocoa development.
IronRuby 1.0 is now available. The release is compatible with Ruby 1.8.6 and runs Rails 2.3.x. The next 1.x releases of IronRuby will target Ruby 1.9.
Rhomobile has released Rhodes 1.5, the Ruby based, cross-platform, smartphone app-framework Rhodes. InfoQ asked Rhomobile CEO Adam Blum whether we still need native apps when we have HTML 5?
Apache Pivot is an open source project, which attempts to create a modern, rich client development platform in Java. Pivot started off as an R&D effort at VMWare in 2007 and was released as an open-source project in June 2008 under the Apache 2.0 license. Pivot then joined the Apache Incubator in January 2009 and graduated as a top-level Apache project in December 2009.
February’s edition of the WPF Toolkit brings three more controls from Silverlight: Accordion, AutoCompleteBox, and Rating.
MacRuby 0.5 has been released, with a new VM, AOT and JIT support. The GIL MacRuby inherited from Ruby 1.9 is now gone and Grand Central Dispatch support allows to keep a system's cores busy with Ruby threads. Work on the 0.6 release is already under way; a new debugger feature is already available in the trunk.
Adobe Systems has announced the availability of beta versions of Flash Player 10.1 and Adobe AIR 2.0, which can be downloaded from the Adobe Labs site.
As both WPF and Silverlight increase in importance, the confusion about the difference between the two has also increased. Back in June Wintellect released an incredibly important whitepaper on the topic titled "Microsoft WPF-Silverlight Comparison Whitepaper". While we recommend developers read all of it, we offer you a summary of the major ones that impact line-of-business developers.