this app has improved a lot. thanks! being able to download lectures ahead of watching them is very helpful. it would be good to have a place to manage *all* downloaded material (in case you run out of space, etc.). the "discussions" functions have problems with formatting: missing text, badly formatted text (especially with math formulae?). also, it would be nice, for a given course, to have an "all discussions" list (the web version has this). if theres a way to look at course material (a PDF, say) while listening to (or even watching, via P-I-P) a lecture i didnt see it. that would be a good addition. a 10 second "forward" button would be nice. a "now playing" button (as iTunes U and AudioMark have) would be very useful.