If you originally signed up on to be part of the NXE preview program, then Microsoft had a little surprise last night: Rather than add another 10,000 or so members to the preview program, they have pushed out the NXE update to every applicant who successfully applied to get in. Only about 24 hours early, it was certainly a much welcomed surprise to me, as I was signed out of Xbox Live and prompted to update last night.
It seems like Microsoft would be testing the waters by allowing all of these members to update their console a little early; maybe launch day jitters, what with the random bugginess of Live lately, or perhaps they are genuinely trying to do something for their fans
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Either way, if you signed up for the preview program, then go and update your console and check out the New Xbox Experience!