I want to mention at this point http://www.opscode.com http://www.opscode.com and http://eucalyptus.com/ http://eucalyptus.com/ > they are both successful with

I want to mention at this point http://www.opscode.com http://www.opscode.com and http://eucalyptus.com/ http://eucalyptus.com/ > they are both successful with open source (of course they are not anymore early stage startups)