According to a post written on at winpwn.com, the new WinPwn 2.0, which allows Windows users to pwn and upgrade their phones to 2.0 will be released soon:
“So planet and I have been working on updating winpwn to allow for 2.0 pwning. Expect a release within the next few days! Again thanks for all the support. Everyone has been very supportive and I can’t thank everyone enough.”