By now, our view of flip-style cases should be very clear: we can tolerate them for pre-touchscreen iPods, but really do not like them for touchscreen iPods or iPhones, as these devices rely so much on their screens for control that the lids on flip cases are nothing more than an encumbrance. Rare is the flip case that we like enough to consider it worthy of an exception to this standard, but on occasion, a company comes up with something that’s…