I would also like to get a Mac download for the trial, but I cannot find any links to it. None of the above links work, and there does not appear to be a "UI for Xamarin Cross-Platform" anywhere on the Trials page, nor is there any link on the "UI for Xamarin" download page. Could you provide me with a link for a download?
Frankly, not having a Mac specific download link seems like a huge oversight at this point. Surely there are a great deal of Xamarin developers that are using Macs for Xamarin iOS development? It seems ridiculous to me that you have have not managed to provide a consistent, working download link.