That site is a very clever idea, but I wish they explained the methodology better.
There is a link to an example of unskewing a poll, but it is not clear if that is the same methodology used for all the results. Example: http://www.examiner.com/article/is-the-latest-washington-post-abc-poll-skewed-for-obama
How about putting a label at top saying something like:
Poll Results corrected for current party affiliations
example of methodology
...you could have the "example of methodology" be a link to the example...I think this will be much clearer, and reduce bounces.