1. <div elName='zc-component' viewLinkName='My_View' params='zc_Header=true'>Loading View...</div>

In this case, when the user loads up the page, they'll see 'Loading View...' for a second or so, then the view itself will pop onto the page once it's been fetched from the Zoho servers.  As I discovered, you can replace 'Loading View...' with anything else and Zoho Creator will display it while the view loads.  For an experiment I tried swapping it for one of the loading animations on  ajaxload.info, such as:

I thought it might make my project look a bit slicker (which it does), but in fact it also makes the whole page load seem faster in my eyes, just by having a bit of movement and by giving the impression that something is happening somewhere.  There's an interesting bit of psychology in there somewhere I'm sure.