Remember last week when I posted about how you can get an invite to Google Plus through us? Or the sign up sheet at Celebration 2011 to become a member of the site? It’s no longer necessary: After three months of testing, Google Plus is now open to the public.
The announcement was made a little over an hour ago on Google’s official blog, along with a number of other improvements to the site – including the ability to create and join in Hangouts using mobile devices with Android 2.3 or higher.

What’s more, Hangouts can now be viewed by anyone. Where before you might have a group chat with yourself and 9 others, which is still the case. But that chat can be viewed by an unlimited number of Google Plus members. Therefore, if you scheduled a time for a Hangout and sent it out to a large group of people, even once the 9 places filled up for it people would still be able to watch and learn.
You can also share Google Docs, which means you can port over PowerPoint presentations you may have.
All this essentially means you can now do a full product demo live, for an unlimited number of Google Plus viewers, with whatever presentation tools you need – and if you have an Android 2.3 device already, you can do it from anywhere too.
I’m still waiting for one of your product demo geniuses to use Hangouts in just such a way. (So let me know if you do!)
Best of all, Google Plus FINALLY has topic searches. If you’re interested in, “hockey,” for instance, searching for it won’t just get you all of the people with “hockey” in their name like it did before. It will pull up posts that actually mention hockey. I just could not understand why this wasn’t a feature at launch – seeing how it was a Google product, and as I understand it Google has had some involvement with search in the past.
So this is definitely the best version of Google Plus so far. If you haven’t joined yet, now you can, without an invite, and get jumping on the best available features.