I would like to be able to open a posted FEN or PGN from a forum for analysis with one click. Currently I have to paste it into Winboard which I almost always cannot be bothered doing (not to mention that I can't install winboard at work)
So, you click on a FEN posted in a forum and it opens in the Game Analysis interface.
A PGN has an extra button (next to 'show headers' etc) that is "begin analysis from this position" and it does the same as clicking on a FEN that represents the position currently shown.
This would enhance my RHP experience considerably.