Kevin Rubio posted at
and from what I've read, real briefly, he's had this to say about his involvement in the episode:
• the aforementioned "funny exchange" between C3PO and Padme was Lucas's idea
• explanation for why only Jedi wear robes was cut after the third draft
• origin of the "fiddlesticks" line remains a complete mystery
• there were many changes to his script after he turned it in
• not responsible for the music, vocal performances or planet designs
• felt Padme's hair-pin escape was too predictable, but alternatives were "too convenient, or too James Bond"
It was the Jar Jar from the Robot Chicken specials!
This was one of the most uniquely designed episodes so far. The Gaelic feel to some of the music was a nice touch, as well as the fairy tale-like imagery of Jar Jar's foolhardy mission. There were some slightly confusing moments and unusual leaps in continuity toward the end of the episode, but I guess that can be seen as an extrapolation of the sort of chaos usually associated with our favorite Gungan misfit - or maybe it's just Kevin Rubio.
In the episode commentary, I think Dave Filoni hits the nail on the head when he describes the character of Jar Jar as tragic, as an archetype ("the Fool"), and describes his essential nature as well-intentioned, but uncoordinated. His role isn't always to necessarily bring the funny but to present a warped inversion of your usual run-of-the-mill hero.
Sociopolitical references: Nute Gunray = Newt Gingrich. Nute's plans = Neoliberalism.