By Drew Robb
While no accurate market share numbers appear to exist, Ned Lilly, CEO of open source ERP provider xTuple, estimates that the open source share of the ERP market hovers somewhere around one-and-a-half percent. "If you segmented it into three tiers with Oracle and SAP as the top tier, you might be approaching 1 percent to 2 percent in Tiers 2 and 3," he said. "We're clearly very early in the adoption curve."