It's great for us techies to have a place to enjoy the closed unified environment G+ is offering us, without Farmville type apps and all the useless chatter that goes on at FB! Like Apple products (I'm not a fan btw) having a more controlled "suite" can be a huge "plus"!
Coming from the Human Capital technology space, the "panacea" is promoted at a "unified suite of talent management solutions" where all the different modules come from one vendor and work together, *however* they still promote open APIs to ensure data and process flow with other vendors needed to help companies truly manage their human capital supply chain.... Google should sit up and notice! Heck even LinkedIn allows you to connect to Twitter