Matt,
Yes, metrix is great! Just very costly. You can also export out a JDF, so that the imposition dept can use the layout in their rip software (apogeeX works great).
Cost is relative with our ROI. If you haven't seen our ROI video you should. It's very compelling. https://www.youtube.com/watch?v=79VafN1roX8&feature=youtu.be
Back to the original topic of this thread, I just updated the original version of N-up for iOS and the new version now offers the choice of multiple layouts. This is a great little niche product for a phone, I have not looked at the desktop versions though.
Stephen Marsh