I gave a talk that reviewed 8 apps for the iPad2 that allowed you to record audio and upload it to a WebDAV space and then post automatically into Blackboard. Here is the slideshow for that talk. The two apps I liked in the end (but are not free) were Dicatmus and AudioMemos 2. They both do, however, have a free version so you can see the layout of how the apps work and record. Check out all the apps reviewed in my slideshow below. Also a video of the talk will be posted here: http://etcpanel.princeton.edu/blog/blog/2011/10/07/the-productive-scholar-lecture-capture-on-the-fly-lecture-capture-apps-angel-brady/