Most T2's are resistant to the normal level of insulin in the blood, and must compensate by introducing ever more insulin until it reaches a high enough level to overcome the resistance and it acts to absorb glucose. Normally this is done through medications that either 1) increase the amount of insulin your pancreas secretes, or 2) decrease your insulin resistance (via the liver, IIRC).

As such, most T2s maintain a higher continuing level of insulin than non-T2s. Thus an insulin pump like that in the article will work for both T1s and T2s alike, but the insulin dose for T2s simply will be higher than for T1s.