3 -- it is even simpler than that; the source can be found on github. At the very least, services such as this are useful as you are still developing.
For the viability of a commercial version of this project, I think the biggest question is: why would somebody use this instead of Yahoo's YQL?
Note that I was responding to "I won't trust you with my API keys"
On a tangent, while this is a problem for this particular website, the issue is solveable. (See YQL.)
3 -- it is even simpler than that; the source can be found on github. At the very least, services such as this are useful as you are still developing.
For the viability of a commercial version of this project, I think the biggest question is: why would somebody use this instead of Yahoo's YQL?