Any application that can split scanned PDF's on an iPad? Are there any iPad PDF apps that either automatically or manually can split scanned PDF's into multiple pages? 

At school, I receive many scanned PDFs that have 2 physical pages per PDF page, which makes them more cumbersome to work with since it requires me to manually pan around to see the next page.
PDFPen for iPad

has recently been released. It will permit you to split PDFs by saving a new copy of the PDF and then deleting pages you don't want.