Indeed it is a lot like Safari on the iPhone (which I haven't tested, but if it is like this one, I won't like it). But it does not recognizes the viewport (just tested with twitter).

And the viewport would take me to another issue: what about the large majority of pages that doesn't have that tag? Even if Deepfish would support it, I'd keep using PocketIE, it does the job for my specific device quite well.

Maybe on larger displays Deepfish will have a future, who knows...