I was out in a district, and I didn't open it up until the end of the day because I had tons of work that had to get done.
I didn't think I'd get one, and also thought it was a little odd that it was sent on Oct. 1st at 12:07am and not on Sept. 30th, but I thought, "maybe someone from Twitter invited me in".
Who cares, I got an invite!
My e-mail looked official:

I clicked on the link, but it wanted me to add the Google Chrome browser plug-in.
I did go and check and this seemed to be legit, so I did download it (Might've been my mistake right there!)
Then, when it was done and I got in, all I saw was this:
A tad bit frustrating, if you can't read the top black banner it says:"Everything's shiny, Cap'n. Not to fret!" Unfortunately, you'll need to refresh.
Wanna tell Dr. Wave what happened?
With a submit box to go to "Dr. Wave".
Now, I felt like I got scammed and began thinking why did I use IE!
Then, I thought, why not try Firefox? NOPE. Same thing.
I went to refresh the page....for a second, it looks good.....then same black banner.
Try it on another computer - same thing.
Download Google Chrome! YES, that has to work! NOPE.
Try it on a Mac with Safari - No.
At home, on another computer - No.
I came back to work today, maybe? Maybe? NO.
If I go to My Account in Google, I see Wave listed under My Products.
I've posted to the Google Wave Forum and wasted a night trying to figure this out.
Did I do something wrong? Maybe it was the Google Chrome plugin?
Let's just say it's been a frustrating day.
Then again, I'm frustrated over a Beta product that's free.
Maybe it's trying to tell me that I have too many other things going on? I would like to try it out this weekend, though. Can anyone help?