Which is easier, write a Custom OData uri parser or a custom IQueryable provider?

You can write your own data context class. The more funtionality you need the greater the effort. The WCF Data Services Toolkit may be of some help and I found this OData Roadmap: Exposing Any Data Source as an OData service presentation from MIX to be helpful.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.