IronPython for .NET
The hope of having a great dynamic environment in .Net is very exciting. Ever since Jim Hugunin presented IronPython at PyCon and released IronPython v0.7, there has been a lot of activity around it. When I last looked at it 8 months ago, I noticed it supported most of the common python syntax. Writing small .Net powered scripts suddenly became possible. Jim says that they will release a new version every couple of weeks until 1.0 comes out. There's also a PHP compiler for .Net. What's particularly interesting is they've implemented the language and the PHP libraries. This means they've been able to port applications to .Net with minimal changes to the source code. This is very promising.