In working with the first grade classrooms on students recording their stories on iPads I am focusing on Explain Everything these days. There is a significant update in the app that will load if you run updates. There is a video explaining the update at: http://www.explaineverything.com/ee-showcase.html. One option is for students to draw a number sentence and then record their strategy. Another is to record photos during an activity and then have students upload the photo followed by adding voiceover. After the recording you export them to your email, then the videos can be downloaded and posted on the student blogs or classroom blog.
Kidblog: I can export student names from PowerSchool to readily set up each clasroom. Then the individual student blogs can be added to the classroom blog as a link gadget.
Also, one alternative to posting video to Posterous is to post from the iPad to a teacher YouTube channel that is part of Yarmouth Google apps. Once the video is posted, you view it on your computer, click Share, then Embed, turn off suggested videos, copy the embed code to the clipboard, go to your Blogger blog>New Post>html for the post>paste in the embed code.