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New Mono 1.2 Now Supports WinForms
smbarbour writes "The Mono project (the open-source .NET compatibility library acquired by Novell when Ximian was purchased) has released version 1.2. They are now including support for WinForms. Ars Technica has a detailed rundown on the new release. The Mono project supports Visual Basic.NET as well, so developers that use VB.NET now have the possibility of directly porting applications to Linux." From the article: "Relatively high memory consumption and performance bottlenecks are commonly perceived as being amongst Mono's most significant weaknesses. Some critics frequently refer to various performance issues to support arguments against broader adoption of Mono technology in open source projects, most notably within the GNOME community. The performance improvements in Mono 1.2 could potentially address such criticisms, but it is likely that a lot more work will be required before the problems are completely resolved."
Have you looked at job ads lately? Hundreds of VB(.net) jobs for every Python job.
Microsoft has made it abundantly clear that when you implement the the ECMA stuff, and your own CLR, you are entering into a RAND agreement with Microsoft, and they have patents essential to the running of it:
It doesn't matter what Microsoft "makes clear", they are simply spreading FUD, and so are you. You don't enter into agreements by implementing a public standard. You may be infringing on their patents, but given the vast amount of prior art, it seems unlikely that Mono is infringing on any claim that would hold up. And Microsoft's statement of terms may not be satisfying, but a court would take it into account if there ever were a lawsuit.
And what's the alternative? Sun has many patents on Java, has actively defended their intellectual property against FOSS projects, and open source implementations need to implement the entire Java platform in order to be useful.
Mono, in contrast, is a separate implementation, under an open source license, based largely on its own APIs and libraries. Also, Microsoft's patents have been scrutinized in detail.
The situation may not be very satisfying, but for anybody wanting something faster than Python and higher level than C++, the choices come down to Java and C#. Technically, I think C# is superior, and at least for now, the legal situation surrounding it is also better than Java.