One of the drawbacks inherent with our variety of smart devices is short battery life, but the folks behind the InkCase Plus think they have the solution for perhaps the most-used gadget in your arsenal: your phone. The InkCase Plus hits Kickstarter today, and like its name suggests, its a folio case for your phone that packs an always-on e-ink display. If this sounds kinda familiar, thats because the company launched something similar last year for the iPhone 5 and Samsung Galaxy S II.