Good lookin' out, RCcola159!  Thanks to an expert YouTube commenter, I
now know that the AT&T Fuze (AT&T's version of the HTC Touch
Pro) does have the custom HTC YouTube client on it, after all.  It's
just buried way down in the device's Windows menu.  RCcola159 commented
on Part 1 of my video comparing the Fuze to the Sprint Touch Pro,
pointing out the error of my ways when I stated that Fuze did not ship
with the custom YT app installed.

Turns out the app is there, but
it's buried so deep that most folks won't see it.  Especially
considering that all other Google-related shortcuts found on the Sprint
Touch Pro are gone from Fuze also (check out the Internet menu).  Why? 
Could be for the same reasons that you never find a GMail option in the
Mobile Email settings on an AT&T phone ... well, except for the
iPhone.  

So how do you find the app on your Fuze?  As RC
put it: "There IS a youtube client. It's under the /Windows/ Directory.
Just use Total Commander and move the shortcut to your Start Menu"