I just got the Kindle edition of Building PHP Applications with Symphony, CakePHP and Zend Frameworks Wrox; 1 edition (February 17, 2011) and It looks good so far, but the code examples are cut off even at the smallest font size.

Every kindle edition I've gotten that includes code samples that run past the border of the pages has a problem with wrapping code lines. It seems to be a big complaint in the Amazon reviews.

In my opinion I'd rather put up with odd formatting on the Kindle than be forced to use the PC version exclusively, but if they wrapped to the right indentation level like in an IDE I think it would make the books dramatically more usable.