In an interview with GigaOM, Sprint CEO Dan Hesse indicated that despite not selling the iPad, his company has actually benefited from Apple’s tablet device in the form of increased demand for its Overdrive MiFi wireless hotspots. Hesse notes that most iPads being sold are Wi-Fi only models and many customers turn to MiFi devices to get online when away from traditional wireless access points. Sprint was one of the first carriers to promote…