Hi Paul, I've been looking for a good WP plugin for Font Awesome icons, which uses the new version 4 of Font Awesome, and I've just come across your plugin and I have to say it's as awesome as the fonts! I love the new menu in the visual editor which makes it so easy to find and insert the font (and without shortcodes, which is great for me - I don't like using shortcodes).
I have a couple of questions for you though if you don't mind...
1) Are you planning to regularly stay on top of the latest versions (including sub-versions) of Font Awesome? Eg. your plugin currently uses 4.0.1 but the latest version is 4.0.3 which was released a couple of weeks ago. :) Of course I know it takes time to include these changes in your plugin - I'm not suggesting that you should include a new sub-version the same day it's released or something! I'm just asking about your plans and intentions with this, so I know what to expect.
2) A suggestion for you: on the Plugins page of the WP admin area, could you add a link called "Settings" next to the entry for WordPress Visual Icon Fonts? I mean to the left of the "Deactivate" link. You may know that many other plugins have a "Settings" link there on the same row as Deactivate. It makes it a lot easier to get to the plugin's settings page directly from the Plugin page itself.
3) Another suggestion: currently your plugin's settings page is located as a subfolder within "Plugins" - it's called "Icon Fonts". But I don't believe that this is the best location for this page. Plugin settings pages should usually be placed as subfolders within the Settings section, right? That's where pretty much every other plugin places its respective settings page. I actually had to spend quite some time trying to find your settings page before I finally stumbled across it there underneath "Plugins" - the last place I would have thought to look. :)
Thanks! Let me know what you think!