Re: Mashups - cool but is there a way to create and demo without coding ?
You can try http://www.mymapsplus.com. The idea behind this site is that you first create the map design using the new Google My Maps service, then you use MyMapsPlus to embed the map into a web page. There are a range of presentation options to customize the map appearance and more features on the way.
I submitted the url a few days ago so hopefully the site will be included here soon ;-)