Since the iOS app has limited functionality, I am using both that and Safari on my iPad (iPad 2, iOS 5.1) to edit posts. Using Safari, when in edit visual view, if I tap on an image, the image takes the place of the post (the text seems to disappear), and various elements of the Dashboard page slide to new and incorrect locations. For example, the wp-admin top bar slides down over the post edit window, and the editing bar sometimes disappears. The only way out of this seems to be to click Update, and then fix the problems on a computer rather than iPad. Just to be clear, these problems are with the Safari app, not with the iOS app, which has other problems.
The blog I need help with is gettingaroundsac.wordpress.com.