Samsung introduced the Galaxy S4 this week in a flashy event in New York. The S4 is sure to go up against the Z10, which goes on sale in the U.S. next Friday through AT&T. Both devices have new technology that sets up separate areas for corporate and personal apps, while also keeping data apart. BlackBerry has a miniscule 1.1% of the overall smartphone market, but roughly a quarter of the enterprise market. Samsung’s big achievement is in taking security on Android to a new level of security.”]