Wow! I love this plugin. Thank you thank you!
The only thing that's not working so well is the highlighting. Most of the time it doesn't work, and when it does, it's only on very short strings, such as "pa", and then if I kept typing "paypal" it wouldn't highlight.
The highlighting is such a great part of it, I'd love to get it working. Any suggestions of things I should look into would be much appreciated. Oh, and I'm using it with the TwentyEleven theme.