Overall, the J#.NET tool looks promising and provides the smallest learning curve for Java developers among the available .NET compilers. Java developers will gain an additional advantage, as they still remain the preferred programming community either in the .NET Framework environment or the Java environment. This also could pose an indirect threat to Microsoft's newly released language, C#. Though many more features need to be perfected in J#, my initial evaluation lands in favor of this tool for the Java developer. Happy programming!