Happy to report we should benefit from the changes being implemented by Google as the two sites (main & forum) have been designed with mobiles in mind. Those not using the default theme greatly miss out on the functionality when using a phone or tablet.
I am one of these that have moved from accessing the site on an old laptop to using a phone. I have to use my glasses to see both screens so the size of the screen is not an issue. This site renders well on the phone.