Is there a way to update this and add it to a PC homescreen for example? This way the random quotes change every 10 or so seconds.
Brilliant idea! I'll be working on this. 
Is there also a way to see the full list of quotes and choose the one you want to read at a time?
Well, I could just give all the quotes to you, but this way it wouldn't be so surprising, would it? 
(I'll probably create a hidden page for that reason, though, as I predict demand for the whole list)