Genius Scan - On The Go.
CalPrint - CalPrint uses your existing reminders and calendar entries on your iPad or iPhone (Exchange, iCal and Google Calendars etc.
Docr - Docr is a free app for the iPhone smartphones that lets its users scan all of their documents into sharp images and, in the end, store them as PDF files.
Printer Pro - Print attachments, receipts, documents, web pages from your iPad and iPhone.
Tiny Scanner - Fast and easy to use mobile document scanner.
Print n Share - “Print n Share” for the iPad, iPhone & iPod Touch is the best printing and file sharing app.