Comcast (s cmsca) today said it would launch 100Mbps broadband service for business customers for a whopping fee of $369.95 per month. The commercial tier will launch first in the Minneapolis and St. Paul, Minn., region, and will offer 100Mbps down and 15Mbps upstream. As cable firms roll out faster broadband backed by DOCSIS 3.0, they now can offer high-speed data and voice options that appeal to business customers. Business customers won’t have the 250GB per month cap that residential consumers have. The offering is part of a larger push by cable companies into the small to medium business market dominated by telecommunications companies and dedicated T1 and voice lines.