Well, the idea is good.
However, on the E90 i ran into some problems.
First of all, the image was upside down, making navigating the menus a bit hard.
Other than that, and I guess it's e90 related, you can only use magnifier on the small screen, as using the camera requires the phone to be "closed"
If there's a workaround to that, it would be great.
But all in all a funny if not for me overly practical apllication