OCTOBER 3, 2005 SPECIAL REPORT: OPEN SOURCE Open Source: Now It's an Ecosystem This software movement is branching into not just mainstream business applications but also the associated services. And VCs are eager to help Eighteen months ago John Roberts, Clint Oram, and Jacob Taylor decided to quit their jobs at Epiphany, a maker of customer-relationship software. The trio wanted to target the same market, but write a new application developed using open-source code. It took them only three months to create the program and just another month to close their first round of funding. Little more than a year...