flores
an ambient monitor for email

ottmar
a fresh bouquet of email
in collaboration with Ottmar Liebert

coras
ambient email monitor
for your finances

zaptastic: blueprint for a widget of mass destruction

The widgets above are not public domain.
Some are free, but some are payware.

There is an additional page of public domain widgets

starman
ambient iTunes ratings

locket
iChat. personalized
try it now.