[hemme]

It'd be super-useful if one could search for bookmarks among all documents. The search result should be the list of all the documents that have at least one bookmark that matches the searched text.

Example:
A user has many documents each containing several music sheets. She has indexed the sheets using bookmarks. The user can't remember which documents have a bookmark that contains the term "love". She searches for "love" and MobileSheets shows her the following 3 documents (bookmarks are underlined and clickable):

The Queen Collection
- "Crazy little thing called love" (p.12)

Michael Bublé Music Sheets
- "love" (p.23)

The Beatles Sheets:
- "And I love her" (p.1)
- love me do (p.5)