I'm a new N800 owner and completely thrilled with the unit so far! How have I lived this long without it.

As my first post here I though I'd post my additional internet search definitions and icons. Basically I just added:

Google Maps
Google Phonebook
IMDB
Epicurious
Amazon
Newegg

On the N800 all you would need to do is:

1) Unzip the files
2) Disable the "Internet Search" applet temporarily
3) Copy the .xml files into /usr/share/mis
4) Copy the .png files into /usr/share/icons/hicolor/scalable/hildon/
5) Enable the "Internet Search" applet again

Enjoy!