I am hereby confirming that this project has been SOLD. I simply cant find the time anymore due to personal issues. Another, more experienced developer is taking over the GPU Coin project. This dev is currently working on multiple big projects, unfortunately I cant provide all the details yet. More info will be provided in the coming days. The dev is already in touch with several large exchanges, atleast one of them will list GPU after the takeover. If your wallet is out of sync, please try the recently updated Windows wallet from the OP.
Its been a pleasure!
Good luck to everyone.