Greetings!

We just released v1.1 of our PMP Exam flashcard engine.  It offers randomized flashcard decks, where you select focus study on individual Knowledge Area, Process Groups, or all.  pmprepflashcards.com is $10 for unlimited access.  Every card has a PMBOK page reference so you can go back and check your answers.  This is a web-based solution so can follow you everywhere you go.