The generous team from Xbox Live are giving users the opportunity to gain early access to the upcoming dashboard upgrade such as Zune, Facebook, Twitter and Last.fm compatibility. Those who choose to participate in the program must fill out a simple questionnaire before the selection closes on either the twentieth or twenty-first of October, in other words, time is running out. The questionnaire can be found here.
The preview is available to both gold and silver Xbox Live members, however preference will be given to the gold members as silver members will have limited use of the upgrades with some features being reserved exclusively for gold members. They are looking for thousands of participants who are willing to offer some feedback on each of the new dashboard accessories. The preview is available globally which means that anyone, anywhere (with an Xbox and Xbox Live) is eligible for inclusion in the program.
If you are curious about these upcoming features or concerned about how they will affect the performance of your console it would be a good idea to apply for the preview program and offer some feedback before the update is finalised.
Article from Gamersyndrome.com