nevermind... saw that you want waterproof.
only way to get that, really, is with a dry bag i would guess.
zippers can be water resistant, but i have never known one to be completely waterproof.
topeka makes this thing without a window:
TopeakŪ Cycling Accessories ? Products - Tri DryBag (2)
this one looks similar to the one you link to:
http://www.amazon.com/Weanas-Roswhee.../dp/B00D87ECUQ
banjo brothers:
Top Tube Bag | Banjo Brothers
this one is stem mounted:
Phone Pack, Bar-Top Mounted | Banjo Brothers
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So long. Been nice knowing you BF.... to all the friends I've made here and in real life... its been great. But this place needs an enema.