Plugin based widget for wordpress.
Just activate the plugin and you'll have the Bitcoin price Widget on your widget administration screen, ready to add to a sidebar of your choice.
It's a little bit rough still, with no options to edit, but I'll probably change that in a couple days. It only took like 5 minutes to put this together.
Download here:
Clicky ClickyThanks psy.
This widget is basically just a rehash of the code I presented at the top of the page though, only you can't edit the way the info is displayed without editing the file. Not that I don't appreciate you putting it into a widget file format though.
It would be nice to see a widget that incorporates caching and short code tags for the display of variables. Perhaps a customizable CSS as well.