Hi everyone,

I've uploaded a new version to extras-devel right now. It should be soon available for download on your N900 if you have Extras Devel enabled.

There are quite a few changes, I will write a changelog soon.
Notable:

Layers
Pen thickness (click on the Pen Icon)
Pages (click on the Hand icon)
Basic Colors

When you click on the Pen/Hand/Color icon, you will see a new toolbar with options for that element:

Pen-> Very Thin | Thin | Medium | Thick | Very Thick
Hand-> New Page Before | Delete Page | New Page After | New Page End | Prev Page (the rounded arrow icon ) | Next Page (the ugly pen icon )
Color -> Black | Blue | Green | Red | Yellow | Orange | Magenta

Layers can be selected from the Main Menu.

I am now working on the icon set to have a unified one at least.
But please DO test this version and report ANY issues.

PS: there's also a Open Background menu item now, it allows you to open (and annotate) supported file types as background (namely images).

Thank you!
Aniello