All the changes in the new OOTIM Mobile update:

(Soon)

New touch controls redesigned from scratch

Fixed UI and mobile-optimized objectives, just like in the official BATIM port

More optimization and fixes to the graphics settings (finally removing the resolution option and replacing it with another one)

The UI now shows you objective-related information, such as how many items you've collected to place on pedestals, etc (something like the image you are seeing).

Improved graphics and lighting bug fixes, also adding a new environment similar to PC version 1.1

Complete bug fixes and more easter eggs (the dancing ollies easter egg will finally be optimized)

And most importantly,

the port will be completely remade and much more polished.