So still no iOs App where I can check to see if I already own the title when not at my computer? Ugh.
Ever heard of the internet? It allows you to bring up files when you are mobile, or away from your computer. It is totally amazing.
Delicious Library 3 allows you to "publish your library to the 'Web'".
Then you can use a 'bookmark' to view your collection anywhere.
The internet, you should use it.