I read it in toto a few days agogo ;]
There were certain images and lines that made me go "oooh, I like that"
I can see this as a graphic novel pretty well, which I think is a good thing about the imagery.
The format worked for me because I've had the same struggle, not wanting to conform to a screenplay format but not having a full-blown novel either.
I'm not sure about the R2/3PO cameo :p But then again...I want them as full-fledged characters in my version.
It's really hard to give constructive criticism! It all worked coherently, made good connections between characters, good story. My creative energies have been near zero for awhile since there's so much I need to be doing, but once I can get my story more coherent, my own approach will hopefully add something to the thinking about the prequels.
On a different, more futile note, actors cross my mind to play the roles. Arthur Darvill was one for Obi Wan, but I mostly dismissed the idea early on, but looking again, I think he could make a worthy choice.