You asked, we listened. After our iPhone Gems roundups of all of the iPhone Mahjong and racing games, we took on an even bigger project: compiling a master list of all of the iPhone’s Sudoku software. This wasn’t easy: there were so many versions of Sudoku, collectively costing over $70, that we literally crashed our iPhone 3G trying to install them all at once. Now, after fully restoring the iPhone, we bring you this: a master list of…