So I took a slightly different route than planned this week. My day job steered me towards looking into mojo (http://mojo.bt.com). This is an implementation of the BT SDK (http://web21c.bt.com/) that allows you to create gadgets that utilise Web21C and can be easily be added to your website (or application).
So in keeping of all things TiddyWiki (http://tiddlywiki.com/) I created a plugin for TiddlyWiki that allows you to send a SMS and make a call from within your TiddlyWiki.
You can view a sample of it at:
Or you can just download the scriptfile directly:
Please note that you will also need the following file for encryption: