You get 50 gmail invites to give but invites for gmail are not needed anymore. You do not get 50 gvoice invites. You should get 3 at some point (it was over a month of having the account before I got mine). With wave it was less than 2 weeks and I got 8 invites. I few days later I got 17 more. The wave invites are more beneficial if you give them to people you work with or interact with. It's a collaborative website that has nothing to do with phones. In a school or business setting it would be discussing a project. You can post files and pictures and you can communicate real time, ie, you see what the person is typing as they are typing it. On a more informal level, if you were planning a party anyone that you wanted to invite could be in the wave and say whether or not they were coming and what they were bringing, etc.