Hey guys.  Steve Wortham from BucketSoft here.  Adam, thanks for posting this.    I'm still looking to make improvements in speed and responsiveness with large target strings.  And I'll be adding some extra features like a list of common regular expressions you can choose from a list, and the ability to save regular expressions to your own library.  I want to keep the interface simple and easy to use so most of the new features will be shown as expandable/collapsible options off to the side.  Until then, I hope everyone enjoys it.