As one who, in 37 years of life, has never known the pleasure of living in Suburbia, I find myself an unrepentant Urban snob. I spent my entire early life (pre-college) in small towns and the country, spent college and grad school in college towns and the city, ministered in a close suburb in Richmond, but lived in the city or "urban" part of the Chesterfield County suburbs (I think this meant that blacks, whites and Latinos co-mingled- nobody would tell me). In Houston, it was inner city and in Boston it was a true urban paradise. Once we moved to Tampa, we did not look for a home outside of the city core.
I mention this because over the past few years, not only have some Christians become concerned with the city and started moving back, but books have been written and good conversations have started. While church planting is still a primarily suburban affair, some Christians have felt calls to the city besides those ministering to poor families and those concerned with only the new urbanites (those who want the benefits of the city without the risks).
The pastor of a friend's church in Chicago has an interesting take on how the suburban lifestyle undermines our mission as Christians. This lack of hospitality is especially true in the suburbs, where one has to work extra hard for community, but is becoming a truism of the city (at least the one in which I live). Read the story here.