I like it.

Hey ToasterDog (yes, you know who this is!) I find this handy in many ways, but, yes, for theater one should always refer to a swatch book. However when you do jobs like I do, it can be a really useful tool. Its fast, its accurate (but not to tungsten quality) and you dont need to run to the bus/hotel to get a swatch book. With hundreds of gels out there and limited time, this app can be a lifesaver. If you have 3 weeks to sit in a theater... carry swatch books.

Luminary 07 about Gel Swatch Library