Dave is able to provide a holistic view on specific problems, bring a plan, convert criticism in improvements and get a community team together to execute the task

I had opportunity to work with Dave in maemo.org both as a Community Council representative and as a community contributor, he was always a pleasure to work with and an excellent resource to the community. Especially given his extensive experience in open source, its communities, and technology in general — he really has his finger on the open source pulse. His thoughtful and deep-thinking approach to community issues always provides useful insight and his competent approach to all tasks is both refreshing and confidence inspiring.

Dave has a fantastic and detailed appreciation of all aspects of open source development and community. The training he delivered at the GNOME Users' and Developers' European Conference was comprehensive and engaging; he has a great ability to communicate complex ideas with real world examples that are both entertaining and educational. Dave's the go-to guy for help on GNOME and I wouldn't hesitate to call on him if I needed general open source consultancy and advice as well. His patience, good humour and encyclopaedic knowledge make him truly invaluable.

Dave has served on Yorba's board for over two years now. Dave has many years of experience in the free software world and his perspective has always been valuable for us. He's friendly and responsible and reflective and is an outstanding communicator. I recommend Dave heartily to anyone looking for help with free software projects or with building a free software community or organization.

Dave is very knowledgeable about the dynamics of community software projects, and was a valued contributor at Wengo. As a lead figure in the project he brought ideas to the table, and succeeded in putting his ideas into practice in an existing project with tact.

Dave is a good communicator and transparent in all his decisions. He takes advice to all the team to make these decisions and recognises your work. A great manager to work with.

In the chaos innate to a vibrant open-source community, Dave was the guiding light. He wrote clear roadmaps with reasoned rationales that both inspired us and foresaw contingencies, which is a rare feat. He guided and mentored me as an intern, and taught me so much about open-source, software development, and what a community is. All this while being a great, nice, fun colleague

Dave is an efficient manager, who always makes sure everyone is moving in the same direction and everyone is focused on realistic objectives. While working on the OpenWengo project, his deep knowledge of the way open source communities work has been an invaluable asset to help contributors and paid developers work together and deliver the best work we could.

Dave is an invaluable member of the GNOME Foundation. During my tenure as Executive Director of the GNOME Foundation, he was a great mentor offering strategic, organizational and practical advice. He also plays an active role in the GNOME Foundation. For example, he has been a key member of the Executive Director Hiring Committee, he's helped plan the annual flagship conference, GUADEC including procuring sponsorships and he started a new training program. I'd highly recommend Dave as a consultant to help organizations understand and work with open source communities, as an event manager or as a trusted team member or manager.

David was energetic and enthusiastic on the GNOME Board. He was a pleasure to work with.

I've worked with David extensively in this role, and he's been an incredibly proactive and constructive guy. I'd certainly recommend him for any role involving technology and planning/management.

As I was in charge of the development of Air Quality Monitoring Systems at Cegelec, Dave worked in my teams as we performed the migration of the system to open-source technologies. Dave has a strong knowledge in open-source technologies and he is deeply rooted in the communities around open-source development. This greatly helped us to perform this sophisticated migration with respect to delivery deadlines, customer satisfaction, and software enhancement. Thanks to his empathy and a great sense of humour, Dave also helped us to improve our customer relationships. Personally it was a pleasure for me to work with Dave, and I still enjoy our regular meetings.

David has done a great job providing administrative oversight for the GIMP developers, freeing those developers to work on code and allowing GIMP to progress at a rate it hasn't seen in years. David's organizational and negotiating skills have helped pique interest by providing access to information and conferences for those people interested in participating in the GIMP development process.