The March CTP of ‘Orcas’ was released last night. It’s available for public download from MSDN here, although you’ll need to be signed in to your MSDN account first.

(If the link doesn’t work, it’s on the ‘Downloads’ page once you’re signed in under ‘Most recent developer downloads’.)

I’m still downloading it at the moment. From what I’ve heard it’s much more complete than previous CTPs and LINQ is now incorporated into Visual Studio for the first time.

There’s detailed highlights on the download page, so Iwon’t reproduce them here. It’ll give you something to read while you download the 700MB file.

Edit: There’s a second 160MB file – I’ve no idea what’s in there, or what it’s needed for.