It is possible to use the May CTP templates with the October CTP version of F#
Create your new project, then unload it and edit the hint path for the FSharp.Core.dll to point to the October CTP,
<HintPath>$(ProgramFiles)fsharp-1.9.7.8Silverlight2.0inFSharp.Core.dll</HintPath>
then reload the project and build.
You do have to package the .xap file manually by e.g. using the chiron tool (or just zipping and renaming)
The AppManifest.xaml file looks like
<Deployment xmlns="http://schemas.microsoft.com/client/2007/deployment"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
RuntimeVersion="3.0.40818.0"
EntryPointAssembly="astroclock-fs"
EntryPointType="astroclock.fs.MyApp">
<Deployment.Parts>
<AssemblyPart x:Name="astroclock-fs" Source="astroclock-fs.dll" />
<AssemblyPart x:Name="FSharp.Core" Source="FSharp.Core.dll" />
</Deployment.Parts>
</Deployment>
where you fill in your own assembly name and entrypoint instead of mine
Create a folder in $(ProjectDir) to hold all the files to be packaged and copy C:Program FilesFSharp-1.9.7.8Silverlight2.0inFSharp.Core.dll into it, along with the AppManifest.xaml above
Create an empty file null.py in the folder to keep chiron quiet if you are using that tool
Add the following post-build steps
cd $(ProjectDir)
copy /y $(OutDir)$(TargetFileName) [your directory with all the output]
"C:Program FilesIronPython 2.0Silverlightinchiron.exe" /d:[your directory with all the output] /z:app.xap
Create a test page to load app.xap
Build project
Load page in browser and enjoy
ADDED
You can make a permanent fix for the hint path needed to find FSharp.Core.dll by editing the template in C:Program FilesMicrosoft Visual Studio 9.0Common7IDEProjectTemplatesCacheFSharpSilverlightSilverlightLibrary3.zipSilverlightLibrary.fsproj (and probably the version of the file in C:Program FilesMicrosoft Visual Studio 9.0Common7IDEProjectTemplatesFSharpSilverlightSilverlightLibrary3.zip just to be certain).
And a working proof of concept (source and everything bundled into the xap) here.
