You can definitely Unlock it using the HTCDEV process , I have a done this. Any ways if you are able to flash a ROM then there is no reason to get it Unlocked, more over S-OFF gives you full control over the device but again it also increases the risk of getting your phone bricked so make sure you use it wisely (knowing what you flash) , so I will say why to beg HTC for some thing they have already provided.
One more thing S-OFF device means you dont need to flash boot.img separately so you dont need to use your PC to flash roms no more.
Waiting to know about your progress on flashing the ROM ..
Last edited by ethanon; 11th February 2014 at 06:21 AM.