I'm pleased to say that the Windows Mobile 6 SDKs went live today as planned. You can download the SDK for touchscreen (Windows Mobile Professional) and non-touchscreen (Windows Mobile Standard) here.
Using the Windows Mobile 6 SDK you can test your application using the emulators in the Windows Mobile 6 SDKs. The SDKs together with Visual Studio 2005 mean you have everything you need to build and test applications for both Windows Mobile 5.0 and Windows Mobile 6. Read the “What’s New” guide to learn why your Windows Mobile 5.0 application should work on Windows Mobile 6, what to expect from new screen resolutions and why Windows Mobile 6 makes it easier to build and deploy Line of Business applications.
Don't forget that around May 1st we'll release the Windows Mobile 6 SDK Refresh featuring new documentation, the latest emulators, support for basic AJAX applications and links to Line of Business frameworks, samples and documentation.
For more info on the Windows Mobile 6 SDK, our SDK Program Manager Fernando Zandona has put together a nice post here.