* I'm not sold on "show title on hover".
Touchscreens don't do hover...
Except the new galaxy.. ;-)
* Ragged edges can be fixed by adjusting spacing or
aspect ratio a little,
like justifying text. This would look awesome. :)
I'd keep aspect ratio constant, but play with the height a bit. This
would make the gallery height setting a rough target value, rather
than an absolute.