http://online.wsj.com/public/article/SB120113632301711881-yX2Nw5JpA3BW8PMPPzs… I’m beginning to realize that the optimal traveling configuration for me is a smartphone with all my contacts (currently an iPhone), a subnotebook with both wifi and 3G WAN connections and my 17” MacBook Pro. The MacBook Pro is for demos and where I have working space (hotel rooms, conference rooms, etc). The subnotebook …