Keeping in mind that Zim is a GTK+ app and is thus not as freeform when it comes to GUI elements as QT apps and such, I think the best way is to implement these are:

1) Configurable keybinding ala Comix (another GTK+ app), or at least the option of turn on/off fullscreen toggle/new page via F6/F7 (for instance).

2) Click hold to access menu + fullscreen via toolbar button (also ala comix), though a fullscreen option would have to be added to the first layer of the menus to ease transition (don't put it in a sub menu if possible).

Toolbar in fullscreen will negate the advantages of fulscreen real estate to begin with, and I would be better off with my current layout (top bar + nothing else).

Also, a thinner scrollbar + kinetic scrolling would be preferrable, though the current scrollbar implementation already works well enough.

Also, the utilization of the hildon-specific menu system (ala leafpad) would also be nice, if at all possible.

IMHO anyway.

But cobble's way is nice too, and is largely consistant with the general hildon UI.