Using iPhone or an Android or Windows smart phone Mobile Kit Pro is enabled on demo.mojoportal.com you can test it from there as a site administrator though you cannot disable it, ie setting a different mobile skin in site settings will not change it on the demo site because it is configured in web.config to override that setting so it always uses Mobile Kit Pro for the site mobile skin. You can also test this site as a visitor using a smart phone to see how Mobile Kit Pro handles large site page hierarchies in the menu.
I do not offer trial downloads, all of our add on products can be tried on our demo site to make sure they do what you need or expect before purchasing.
Hope that helps,
Joe