HTC is now accepting orders for the unlocked 32GB model of the HTC One. The carrier-free version features all the same specs as the other models. It's powered by a 1.7Ghz quad-core CPU, and ships with 2GB of RAM and Android 4.1.2 with Sense 5. The unlocked model is $575, which is cheaper than the 64GB developer edition that sells for $650.
Both the unlocked and developer models have been listed as "out of stock" on HTC's website since HTC One pre-orders opened. So if you've been waiting for the unlocked model, now is the time to nab it. You can buy the unlocked model through HTC's website.