This quick and simple mod allows you to use radio buttons for product attribute selection on your products page instead of the default drop down list. I was looking for a simple way to do it without having to add alternative contributions which have more options like checkbox or text area selections.
This contribution makes a new tep function which can be used in place of the existing function and is called once from products_info.php.
You can customise the table layout for your radio buttons as you like.
Should take about 30 seconds to install.