Senh: Let's see if they can keep this going. Most of my friends have already abandoned it. The only ones who are still using it are just pimping their products. Google+ is a nice product - clean, sleak, and intuitive. The only problem is most of my friends are on Facebook, and they don't want to leave for a similar service. Google+ still needs a more compelling reason - kinda like when Facebook first opened up their API to developers.
Senh: Let's see if people stick around. My hunch is that they won't. If you can't get early adopters to stick around, how can you get the general masses to do it?