Xbox Live preview 'wave 1' invites out now

The "wave 1" invites to the Xbox Live update preview program are out now, according to Major Nelson. If your dear console has been invited to participate, there should be a prompt upon sign-in. A "wave 1" invite implies that more waves are incoming, so don't get too sad if ya didn't catch the first one, Moondoggie. Grab that board and prepare to ride a future wave to all that upgradedness.

[Thanks to everyone who sent this in!]