HTC announced via their Twitter account last night that they would start taking pre-orders for the HTC One Developer Edition today. The Developer Edition comes with 64GB of memory, an unlocked SIM and bootloader, and comes in silver. The special edition version of the HTC One will be available for $649 and can only be purchased by customers with a US Zip Code. According to HTC’s site, the Developer Edition will be ready to ship on April 18th, the day before the new device is scheduled to be available from both AT&T and Sprint. If you are ready to try to grab one of these limited quantity versions of the HTC One, head over to their pre-order page at http://htconeprereg.com/brands/HTCPreReg/homebrands/index.htm. As a bonus, HTC is throwing in a free case and free shipping.