“What is your bank trying to sneak by you?” appeared in bold letters on my computer screen. The screen was then filled with the complex and confusing words we’ve all seen in small print documents communicating our banks’ fees and financial charge practices. I hate those documents, don’t you? In one of the cleverest business model innovations of the year, GMAC Financial Services, a $180 billion global financial institution built initially upon the General Motors’ brand, has renamed its bank as Ally Bank and redefined its value promise. Like a river seeking lower ground, Ally Bank moved right into the heart of our frustrations and forced compromises with the banking industry, offering a solution that we’ve been waiting for – a bank that’s on our side. Ally Bank’s value promise is relevant, compelling and differentiated: Bank with us and you’ll keep more of…