1) the new click-menu for comments is awesome. definitely think it's faster for almost everything than the hidden buttons from v7.

2) long pressing a comment should hide/collapse it, so you can quickly hide a comment without having to use the menu

3) it would be really awesome if the app would remember which comments you've collapsed across sessions (obviously this is a bigger feature change, so not something you have to worry about it it's a lot of work)

4) the popup for posts should be a little wider on tablets

5) the image preview should be a little taller. i'm not sure if it's possible, but you could have it change demensions based on the demension's of the original image. if you look at g+, it shows the preview for landscape images at their actual demensions, and shows portrait images as squares. if possible this would be a good approach