原文:
For years, Microsoft has had two offerings in the embedded space: XP Embedded and Windows CE. These operating systems have formed the platform for many successful devices, such as PDAs, Smart Phones, automatic teller machines, and network switching equipment. Microsoft introduced the .NET Framework, which brings the power and reliability of managed code to scale from large servers to embedded devices. However, many devices are still too small/resource constrained to support these platforms. To serve the market for even smaller devices, Microsoft has developed a new platform Microsoft .NET Micro Framework. (.NET MF). The .NET Micro Framework addresses this untapped area by providing a small, efficient implementation of the .NET runtime for smaller devices. This has great advantages to developers who can maintain the same managed code, use the same world class tools, and continue to participate in the world’s largest developer community. ( Reference From: .NET MicroFramework White Paper)
Figure 1: Microsoft Embeded Products

Figure 2: The Basic Architecture for .NET MicroFramework

在今年的MEDC大会中有简单地介绍了.NET Micro Framework,当时我记得是用于机器人编程大赛,其他没有什么印象。
Daniel Moth 曾经对.NET Micro Framework 进行了一番介绍,列出了.NET MF 的主要特性。
现在已经有beta版的开发包了,但找不到从哪里下载,好像要通过SPOT(Smart Personal Objects Technology)邀请获得开发包。没有详细看 Introducing the Microsoft .NET Micro Framework Platform,有时间再了解清楚。
另外, .NET MicroFramework 开发团队录制了一个webcast: Introduction to the .NET MicroFramework webcast,介绍了.NET MF 开发的工具和技术概貌。(我刚才尝试打开,可是看不到

参考:
Introducing the Microsoft .NET Micro Framework Platform
The Moth: .NET Micro Framework
Microsoft .NET Micro Framework White Paper
Microsoft .NET Micro Framework Product Sheet