It's hard for me to imagine it having much mass adoption -- it's just too similar to Facebook, and its killer-feature, Circles, is of dubious value to the non-O

It's hard for me to imagine it having much mass adoption -- it's just too similar to Facebook, and its killer-feature, Circles, is of dubious value to the non-OCD, non-geek set (do normal people care about sorting their friends into various groups?). That said, a la the XKCD comic, I could see it being personally useful to me as a way to stay in touch with people who refuse to use / have left Facebook, but have no such compunctions for a Google product. I.e., I could see it becoming a place where the "cool kids" hang out. I'm curious what Google's response will be if G+ only gets a limited amount of adoption. Will they just give up on it, like Wave, or will they keep pounding away & improving it? It's been noted that today's Google is like yesterday's Microsoft, incredibly aggressively moving in on any perceived threats, but yesterday's MS would keep iterating an unpopular product until it was successful, whereas Google seems to be taking the "keep trying shit until we have an instant hit" approach. (Perhaps they were spoiled by search & gmail, where they were able to introduce truly game-changing improvements over the status-quo.)