format_num replacement?

Hey again. The new version of the module is very handy - a lot of great improvements made! Looking at the Override Output Format options on the admin menu, three seems an arbitrary number for as many possibles uses as may be out there - I would recommend changing
<span style="display:none" name="format_num">0</span>
to instead contain the new Override Output Formats, like so:
<span style="display:none" name="format_num">%days% shopping days left</span>

I might also recommend placing the readme contents in a hook_help or some such, so that the people who overlook such things will still be able to find it. Lastly, a bold 'devel and this module do not play nice' message somewhere would save some users a lot of frustration.

Thanks again!