A general comment - I would urge you not to stop with the globe. For example, #4 is very simple elegant way of messaging connections. Here are some keywords to drive your creativity -
World
Global
Connections
Relationships (biz-to-biz)
Bridges (geographical distances as well as between people)
Time saved - it a very powerful, if not the most powerful, proposition of our business (I still cannot think of how to best convey that)