Brandon Watson just wrote on the Windows Phone Developer Blog that Windows Phone Mango is now available for developers to install on their own retail devices! To do this, you need a developer account (http://create.msdn.com), a developer unlocked Windows Phone, and the new Windows Phone Developers Tools Beta 2.

To install Mango on your own device, here’s what you need to do:

• Download the Windows Phone Developer Tools Beta 2 – You will need to update your developer tools to update your phone and to deploy your apps, so run…get them now.
• Read the instructions before updating – These are very important steps which you need to follow to the letter. We’re committed to supporting our developer community with such an early access program, so if you have questions, start with the forums, which we are monitoring.

The Windows Phone SDK includes the following

• Windows Phone SDK 7.1 (Beta2)
• Windows Phone Emulator (Beta2)
• Windows Phone SDK 7.1 Assemblies (Beta2)
• Silverlight 4 SDK and DRT
• Windows Phone SDK 7.1 Extensions for XNA Game Studio 4.0
• Microsoft Expression Blend SDK Preview for Windows Phone 7.1
• WCF Data Services Client for Window Phone 7.1
• Microsoft Advertising SDK for Windows Phone 7

As an added bonus to students, Brandon also told about a program where Microsoft will give out 50 special Windows Phone Mango Developer devices to students.

This is especially well timed for the tens of thousands of student developers who have registered through DreamSpark or related programs. Just as our Spring Cleaning program encouraged developers to finish up their projects over the past few months, delivering thousands of new apps, summer break is the perfect time for student developers to relax and have some fun with Mango. With the free Windows Phone Developer Tools Beta 2 and free access to Mango, now is the perfect time to see what you can do with Windows Phone. To make it even more interesting for students looking for a great summer project, we’ve set aside 50 Mango phones for those students who are building the next big thing on Windows Phone. Want one? Here’s what to do:

1. Make sure you’re registered for DreamSpark
2. Download and install Expression Studio Ultimate and the new Mango Windows Phone Developer Tools (available free as a member of DreamSpark)
3. Get the free Sketchflow Template for Windows Phone and create a Sketchflow mock-up of your app
4. Post the Sketchflow mock-up somewhere online and tweet out the link using the hash tag #WPAppItUp
5. We will review all prototypes and will contact the developers who submit the best ones and send them a special Mango developer device

Enjoy the Mango bits and don’t forget to show your Windows Phone with Mango to your friends!