Commodore has slashed the starting price of its Callback 8020 flip phone to $399, down from $499, by switching to recycled “post-consumer” memory chips and making the previously bundled earphones optional. The company announced the tiered pricing just six days before pre-orders open on June 30th, and attributed the original $499 figure in part to the global memory shortage that has pushed DRAM prices to record highs. Buyers who want factory-fresh memory can still pay to upgrade, but four of the five colorways now qualify for the $399 price, with the gold Founders Edition holding at its original cost. When pre-orders open, the Callback will default to "post consumer" memory that Commodore describes as rigorously stress-tested and covered by the same one-year warranty as new chips, with premium memory available as a paid upgrade at checkout. The custom FiiO in-ear monitors that were previously set to be included in every box will now be sold as a separate add-on.…