I like your suggestion. I am a Christian Jerusalemite who owns a 500+ years old house in the Old City, and whose family origins can only be traced to this particular place. They call us original Jerusalemites. The most disputed and shared Christian Church is the Holy Suplechure, and it is run under a status quo, with its keys rotating amongst Muslem Jerusalemite family since the times of Omar. Surprisingly, the church has been very well protected by the Muslem keepers. I suggest that the Temple Mount be shared by the Jews and Muslems in a similar fashion, and that my Christian family hold the keys. Adding this to either your suggestion or the UN Proposal if it works, would guarantee world peace for a long time to come.
from the article: What can the Mideast learn from the phenomenon of Obama?