RC:

While I get the smaller PCM screen size in the 911 and Boxster/Cayman, I don't understand why Porsche doesn't use a bigger screen in the Cayenne and Panamera. Well... yes

Same problem as most of the vendors.... the IT is always 6 years back. The only company which does a good job is BMW which started early enough with full integration. The Porsche system is ok but many features still missing - head up display - full integration of online services - etc. 

RC... if you are looking for a huge screen buy a Tesla SmileySmiley