If you've been lamenting the passing of transparent display phones like the Sony Ericsson Xperia Pureness as those vile, opaque smartphones took over, you'll be happy to know that Russia's Explay has taken up the mantle with the Crystal. The basic song remains the same, a numberpad-driven dumbphone with a display that will help you avoid the lamp post up ahead, but it's remixed through colors that render the experience a lot less monotone. We saw this in the Lenovo S800, but the dual SIM card slots and Bluetooth 3.0 at least see the Crystal keep pace with more recent phones in its category. By far the biggest advantage Explay has over its ancestors is pure cost: at 7,000 rubles ($218), it's less than half the $500 that Lenovo wanted and that much more palatable for a handset that isn't running a sophisticated OS like Android or Windows Phone. Russians have to wait until July 1st to pick up the Crystal, but wouldn't count on the see-through phone seeing its way to the US through official channels.