希望会比原来好点，看了一下XNA里的文档，zune一代太差了。列举一下。
Zune has a fixed 240x320 display size.

For input, the Zune device has two buttons and either a control pad or a Zune Pad.

The Zune device supports 2D graphics only. It does not support 3D graphics or 3D acceleration, including 3D primitives, 3D textures, index and vertex buffers, shaders, effects, and multisampling.