Patent reform down to four sticking points?

According to Hewlett-Packard Co. General Counsel Mark Holston, the comprehensive approach to patent reform, which has now spanned several Congressional sessions and is currently styled as S.1145, is “down to four sticking points.”

What are they? Only the most significant and most controversial provisions of the entire reform effort:

“The sticking points involve calculating damages for patent infringement, limiting venue, allowing post-grant reviews and defining ‘inequitable conduct’” (source)

It’s hard to tell if we’re in the home stretch, or if we’re just rounding the turn and getting ready to start another lap.