This post used to be on Posterous. I rescued my posts before Posterous shut down and am now sharing them here.
I've incorporated mifga's multi-sheet print-to-pad hack to prompt for changing sheets between copies. I've also added support for plotting sheet-after-sheet, continuously, using the "M30" G-Code, which causes ReplicatorG to start the program over from the beginning, effectively running until you stop it yourself.
For the curious: have some diffs on GitHub! Also, pictures: