The first 5 min it was blown away, I dragged an MKV file to see if it would play on the iPad, to my surprise it did. When I went to see if I could delete it from the videos I noticed that I couldn't. Also, whenever I disconnected from the app and then reconnected to iTunes and would add a video and save it, it would delete all the other videos I had, the inverse was true. When I had a movie on the iPad from iTunes, and then went to drag a movie using Walter2, it would delete the videos I had already stored on the iPad. I think the program concept is great and simple, but there are kinks that really drive me away, I don't want to have to download things over and over, and have to choose between what I want stored. The fact that you can't delete things also is perturbing. I did notice that book files like .epub do not get deleted using iTunes, and that they also stay in the iPad even after moving files from the computer over. Weird. a 2 out of 5.