Ajaxified Product Pages - Hooking into AJAX callback

The new ajax pricing in version 3.2 (see Ajax-ify attribute option price selection) is a nice step forward in functionality. Unless I'm missing something, however, there is no way to hook into this process to update other page elements.

Right now uc_attribute_option_ajax() calls uc_product_view_ajax_commands(), which alters the display price, weight, and cost. Of course we can use our own ajax callbacks that call uc_attribute_option_ajax(), but that approach gets problematic if more than one module wants to make further changes. Perhaps one solution would be to add a hook in uc_product_view_ajax_commands, something like:

return array_merge($commands, module_invoke_all('uc_product_view_ajax_commands_alter', $form, $form_state));