What are the two best iphone and blackberry development books you have read?

I want to hit the ground running at a new firm. I am seasoned developer in Java/C so will pick up things fast. Need to be able to follow tutorials. I can do either video or plain text. Need your expert advice in recommending a good开发者_运维百科 book to me.

Thank You for your time.

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In my opinion, the best beginning iPhone book around is "Beginning iPhone Development" by Mark and LaMarche. Here is a link to the newest version here. A companion book that was useful to me (never having done objective-c before) was "Learn Objective-C on the Mac" by Dalrymple and Knaster and also published by aPress. here.

I have no knowledge with regards to blackberry books so hopefully someone else can point you in the right direction there.

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must read blackberry java development books

Beginning BlackBerry Development

Advanced BlackBerry Development

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Agree with @Jesse Naugher about Beginning iPhone Development by Mark & Lamarche. I read it as a Java/C developer without any knowledge of Objective-C beforehand and didn't have any problems.

For BlackBerry there's Beginning BlackBerry Development (I'm obviously biased here, but it is written for developers with just a background in Java, and has been well received, and is still the best-selling BlackBerry development book). To be a bit more balanced, I'll also mention BlackBerry Development Fundamentals by John Wargo, which is broader - i.e. discusses web apps and BlackBerry solution architecture - but doesn't go as deep into developing Java-based apps for BlackBerry. Also very accessible and very well written.

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Agree with @Jesse Naugher.
Also, to get a slightly different perspective:
I would recommend iPhone Programming: The Big Nerd Ranch Guide
Get the Kindle version for your Mac - Kindle for Mac
alt text http://img408.imageshack.us/img408/3245/bnr.th.jpg