I've been wishing for several days now to get a Google Wave invite and guess what? I got one today! Tried it for several minutes as I've been so eager to have it and its a little buggy at the moment. There are shortcuts and several ways of doing things which makes it something really big. For example, you can reply to a Wave by simply hitting it then click on "Reply" or use the traditional "Reply" button. There are still a lot of explorations to do as this platform seems to have a lot of potentials.