You guys seriously did not expect Google to have an insta-win over Facebook, did you?
The success of G+ is going to take time, but it will happen. Think about it: you already have an account, one day you'll find someone or something worth following on G+. You'll comment, your friends are going to notice. And believe me, they WILL notice, since there is a G+ cross-integration over the whole array of Google products (Search, YouTube, Docs, Gmail, etc): this black top bar with this red square and number in it will keep haunting you. You'll get hooked in. You'll start checking it out. Eventually momentum will turn. Google cannot and will not give up on G+ now - they have put everything on it. G+ is no Wave, it is no Buzz. The G-train will keep pushing. Until it hits your G-spot (sorry for the innuendo :-)
Google keeps on adding awesome features at the great speed. Facebook will have a hard time to follow due to its size if Google keeps pushing like that. Now that G+ API have been published, the evolution is going to start even faster with input of 3rd parties.
And what can you expect from Facebook in the nearest future? Even more integration with Skype and Bing. Have you really been enjoy these two products lately? Really? FB will keep pushing you to open even more of your private data by default to make advertisers happy. You like that future? Really?
Don't worry, the inert mass that are typical Facebook users will take their time. They will even keep using FB for the next few years, but the tide will slowly turn in G+ favour due to its convenience, simplicity, and speed. One day, while searching for Facebook in Google for 1000th time, average Joes will discover this red square on top, and click it. And chain reaction will start.
Now, don't get me wrong, Facebook will still keep growing and have a very successful IPO at the end of 2012, but after that - the game is on.
I'll leave you with this thought - the fall of a former giant called MySpace also took some time...