From the Kobo blog:
Here are some more details about the newest features:
-Highlight your favorite passages in any book you get from the Kobo store or books you add to your Kobo library that you purchased elsewhere (remember that with Kobo you can bring content from other eBook services to your Kobo library on the iPad or iPhone).
-Add notes to your highlights and come back to them at any time with the easy to use bookmarking features.
-Add your own EPUB and PDF books using iTunes, Safari or Mail
