According to one article on a credible blog, 80% of government and bank data is still stored in IBM DB2 and served through banking and and business apps written in COBOL and running on IBM Mainframes.<p>If this is true, can we safely assume that there's a huge huge market potential for disruption into a potentially $12BB a year market which includes both servers and business apps (banking, government social welfare apps, government critical citizen data apps)?<p>This hardly ever appears on tech media. Even if this is not true, IBM's financial figures would reveal how much it earns from it's Mainframe lines of hardware and software business.