I like the C2 slide show feature very much: cleaner than Quiver with nicer transitions, but I do prefer Quiver's navigation screen. Vertical kinetic scrolling seems much more natural than horizontal kinetic scrolling.

Quiver also seems to be able render thumbnails faster than C2, but the main images seem slower - or maybe this is the UI feel. At any rate, I prefer Quiver for photo navigation and C2 for the slide-shows. Nice to have a choice, but I want the best of both worlds!

1) C2 slide show allows the screen to dim. Bug or feature? Quiver does not do this.

2) It is possible to have C2 play music while viewing a slide show, but you can't adjust the volume while looking at slides. C2 slide show does not presently use the min/max buttons which could be used for a volume control - as they are in the music player component.

3) Quiver seems to know the orientation of most my photos - this is good when showing a slide show, but bad when simply viewing pics one at a time as it reduces the picture area. I would like slide shows (and only slide shows) to auto-rotate pictures.