New iPhone application Blendr provides dating in real-time. WASHINGTON—Joel Simkhai, the creator of Grindr, a extremely popular mobile relationship application for homosexual guys, has invested considerable time recently contemplating ladies.

New iPhone application Blendr provides dating in real-time. WASHINGTON—Joel Simkhai, the creator of Grindr, a extremely popular mobile relationship application for homosexual guys, has invested considerable time recently contemplating ladies. WASHINGTON—Joel...