Oauth 2.0 - level of effort required?

[Crews, Troy L]

Hello,

I sent a fairly un-detailed question to this list regarding implementation of 
Oauth 2.0 functionality last week, and was advised to include more detail to 
garner a better response.

Specifically, we would like to know what level of effort is required, and which 
interface classes to implement to allow our gadgets to authenticate over Oauth 
2.0 without throwing 401 auth errors.

Thanks,
Troy