"wait screen" for IDP v3

[Jim Fox]

>
> It won't really help you, they'll still blame the IdP, but the page at least won't be blank. I suppose I'll just throw my default page into 4.0 when the time comes, a blank page isn't really sensible.
>

We put up a page that says (something like), "You sign in is complete. 
Waiting for your application to respond"

And after about 40 sec we change it to "Your application has not responded.. Continue to wait.. or contact the application owners"

something like that.  It seems to work pretty well.

Jim