One iPhone, Two Different Numbers, Courtesy Of Toktumi's Line2 App [Review]

Last year I signed up for a landline phone for my office. I wish I hadn't for two reasons:
1. No one calls me.
2. Toktumi's Line2 iPhone app, which adds a second, distinct number to my iPhone.
With a service like Line2, there's no need for a physical phone at my place of work. I give my [...:]