XNA vs. DirectX SDK

I have been playing with Managed DirectX for a couple years now. So I'm somewhat familiar with the DirectX SDK and MDX. What is the difference between the new XNA Framework and XNA Game Studio and what we've had previously with DirectX, besides an XBox path.
[260 byte] By [WilBurton] at [2008-2-28]
# 1

This is a pretty deap issue to dive into. It is based on what was to become Managed DirectX 2.0. We'll have a whitepaper soon for users who are familer with MDX and want to move over to using XNA. It should be available around the same time as the beta so I would look for that. In addition there's a whole lot more stuff that makes it more of a complete system for developing a game as opposed to just graphics API's

Thanks!

MichaelKlucher-MSFT at 2007-8-30 > top of Msdn Tech,Game Technologies: DirectX, XNA, XACT, etc.,XNA Game Studio Express...
# 2
That is great news, what I was hoping to hear. Something that would certainly help things is more documentation also. A lot of the things in DirectX are very esoteric and deserve a good explanation.
WilBurton at 2007-8-30 > top of Msdn Tech,Game Technologies: DirectX, XNA, XACT, etc.,XNA Game Studio Express...