VS2008 + MVC2 RC + L2S or VS10Beta2 + MVC2 Preview 2 + EFv4

I'm starting a new project which must have a working prototype within 10 days. The project should be cutting edge and I'd love to use latest tech, especially EFv4. But, also I like new MVC2 features like ForEdit and easier validation implementation (for Areas I don't care).

MVC2 RC is out for VS2008 a开发者_如何学JAVAnd works on VS10Beta 2 too, but "tooling is not". VS2010 uses old Preview 2 tooling, but I don't see anything missing...

Can someone who tried Preview 2 and RC summarize for me is there any important change in MVC2 RC (except for Areas tooling) that got changed and that should push me to stay with VS2008 and use L2S instead EFv4?

What would you go with?

Also, I've noticed Linq2Sql classes can be extended (as they are partial) so POCO is maybe not that important as I've thought.

Thanks.

If this is going to Production soon, then skip on the VS 2010 Beta, and use VS 2008. I have experience lots of bugs with MVC2 Preview 2 and VS 2010, and it would not be worth your time to use 2010 for that reason.

I would use MVC2 RC, since it has the RenderAction method, which is VERY useful.

And if you are going with 2008, use Linq to SQL (I was not a big fan of EF1, but I am really looking forward to EF4).

Otherwise, wait until Feb for the 2010 RC and use that.

MVC 2 Breakdown - I know for sure RenderAction is only in RC.