BB, In the past if you wanted to edit one of your posts it was not the easiest task. Now with the small edite icon at the lower right of your post it is very easy to make corrections/edits/updates.
The picture size limit has changed. There is now a maximum file size tha tws never there before. I just reset my camera settings from 6 megapixel to 80x600 and I do not need to edit them before uploading them.