SIM-enabled qualified electronic signatures to potentially benefit more than 30 million subscribers Amsterdam, The Netherlands, April 2, 2007–Gemalto (Euronext NL0000400653 GTO), a world leader in digital security, today announces that Turkcell (NYSE: TKC), Turkey’s leading mobile operator with more than 30 million subscribers, has selected its SIM-based identification solution to implement a large-scale mobile signature…