Starting immediately, Microsoft is taking applications from developers to preview the next generation Windows Phone 8 SDK.

Interested developers will need to provide their Developer ID, the Product ID of their application, and the name of their local Windows Phone Champ. The accompanying survey must be submitted to Microsoft before September 13.

Microsoft’s Todd Brix also seeks to quell a very vocal group of developers who questioned the motives behind Microsoft’s more restrained SDK release this time around as opposed to the accompanying SDKs for Windows Phone 7 and Windows Phone 7.5. According to Brix,

” The reason is that not all Windows Phone 8 features have been announced and our SDK includes comprehensive emulators that allow developers to test apps against a wide range of Windows Phone features. We recognize that this is a different approach to delivering tools than we’ve taken in the past. Our goal is to generate as much Windows Phone 8 excitement as possible to attract new customers when phones go on sale.”

Brix’s post also goes onto reassure developers that with Windows Phone 8 devices remaining on track to ship this this fall, they’ll definitely have more to talk about SDK-wise in “the coming weeks”.