What I would like is a really good single camera. If that's even possible. One thing I find sort of irritating about the multi-camera setup on my iPhone is that using it as a magnifier is often frustrating. Get too close to something and it decides to switch cameras, which then means now you're actually looking at something else entirely. Maybe I'm missing a setting somewhere, I can't be the only person to notice how awkwardly the functionality is implemented.

If they added a lens lock option (like the AE lock) it would fix this problem nicely.