[Echo-list] ExitButton

[Mark S. <msa...@be...>]

I tried using the ExitButton in a test app (a simple one, where I simply 
constructed the button with a URI and text).  I didn't notice any 
difference b/w suspend and exit.  Once I click on the button and get taken 
to the URI, what is the best way to get back to the page I was on?  If I 
click on the back button, I go back and then get redirected to the new URI, 
likely b/c the state of the echo app at that time says:  redirect to new 
URI.  I assume in exit mode you can't go back to the state you were in any way.