And for our non-USA friends and family, or those whose device didn't come with Android Market access we set you up with the link to the new music app here:
But if you're more of a Cliff Notes kind of person you are in luck, PC World has done a FAQ post that looks to have most of the Google Music & Movies bases covered. There isn't any new information included in the story, but if you are a little late to the news it's a quick catch-me-up.
On the Google Music invite status; of all the people who I have checked in with, only those that are actually at Google I/O have gotten their Google Music invite. I'm not sure if they are delaying invites until after I/O or if they are rolling them out slowly, but I can't find anyone that has one yet.
Source: PC World