The guy who challenged the extradition was Marc Emery (the self-styled "Prince of Pot"). He was extradited in May of 2010 when the Justice Minister signed the order. 2 days ago he was released from solitary confinement.
There is now no stay in place. The stay applied to Emery only.
The stay was lifted and he was turned over. From his Wiki:
"On May 10, 2010, Justice Minister Nicholson ruled Emery be extradited to the United States. He faces 5 years in the US penal system. The possibility exists Emery may be allowed to serve all or part of his sentence in Canada. US authorities have not rejected this option, should Canada make such a formal request.[11]
On May 20, 2010, Emery was extradited to the United States. On May 24, he appeared in a Seattle courtroom and pleaded guilty to one count of conspiracy to manufacture marijuana. ...
On September 21, 2009, Emery entered his guilty plea, and on September 28, he was incarcerated in a British Columbia prison awaiting extradition to a US federal prison to serve the five-year sentence.[146][147] There is a 30 day appeal period before extradition.
Emery was granted bail on November 18, after seven weeks in the pre-trial centre, to await the Justice Minister's decision on the extradition order.[148][149]
While Emery was imprisoned, his supporters held a permanent vigil outside the prison with tents and banners for 45 days, ending when Emery was released on bail.[150][151][152]
On September 10, 2010, Emery was sentenced to 5 years in prison minus time served.[153]
Until April 2011 Emery was held by the Federal Bureau of Prisons at the D. Ray James Correctional Institution in Folkston, Georgia.[154]
On April 20, 2011, Emery was transferred to Yazoo City Prison in Mississippi.[155]"