BlackBerry Hacks cover
BlackBerry Hacks
by Dave Mabe
ISBN: 9780596101152
Found in 1 comment on Hacker News
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davemabe · 2011-04-30 · Original thread
I wrote BlackBerry Hacks several years ago:

http://oreilly.com/catalog/9780596101152

Definitely a lot of work and a worthwhile pursuit.