Open311 is a publicly viewable and participatory way of managing 311 (the municipal non-emergency service - like a cross between 411 and 911). Some existing examples of this are FixMyStreet in the UK, Verbeterdebuurt in the Netherlands, plus SeeClickFix, CitySourced, D.C. 311, and others in the U.S.. Currently there is an effort underway to create a standard Open311 API so that 311 apps can be interoperable between cities and can integrate with a wide range of CRMs and infrastructures. The cities currently most active in this pursuit are San Francisco, Washington D.C., and Boston. SeeClickFix and other cities and entities have also been helping to push this forward. The Open Planning Project is the non-profit organization helping to shepherd the initiative. More information can be found at http://www.open311.org

Representatives from D.C., Boston, and The Open Planning Project are already going to CityCamp, but it does not look like San Francisco has yet planned to attend. If this project is voted for, then I think it should probably go to San Francisco (SeeClickFix is already in the lead). There are other projects on this list that are also attributed to San Fransisco, so maybe all their votes can all be combined.