Love it so far...

Havent had it long, but it allows me to view custom text in various sizes and compare any font. This isnt some magical program that gives you free fonts, but instead shows fonts that designers created; some took decades. These are not cheap, free fonts that you can use on your iPad. Instead a resource for designers and typographers to reference and find the perfect font for their projects from foundries all over the world. An invaluable asset as a REFERENCE.

Aloha Salt Lake about FontBook™ Typeface Compendium, v4.0.0