Not too long ago, the alleged Nokia Lumia 730 codenamed "Superman" was spotted in all its glory, running the Lumia Debian Red update as its operating system. The device is rumored to be a mid-range offering by the software giant, expected to hit retail in most markets by the end of August. According to a new report, the device will reportedly go on sale in Vietnam for VND 5 million (almost $236) by the end of August._