From the press release:
Kaplan Publishing and ScrollMotion today announced a range of innovative Medical College Admissions Test (MCAT) and U.S. Medical Licensing Exam (USMLE) text book apps will be available from the App Store in February. The apps create an entirely new study experience and allow students to use iPhone or iPod touch to highlight text, take audio and printed notes, search content by topic or type, take quizzes, navigate efficiently and more.
I've reviewed ScrollMotion's Iceberg Reader elsewhere on this blog. I wasn't impressed; frankly it's not very good.