- the Federal government has exclusive authority to define marriage. This basically means Alberta has to suck it up :-)
- The Charter of Rights protects the right of clergy to not perform same-sex marriages if their beliefs tell them not to
- the proposed legislation is constitutional
On the fourth question, whether the traditional "one man, one woman" definition is constitutional, the court said that wasn't a question a they should be answering. Basically they didn't want to pass a constitutional judgement on the status quo.
This gives the government the green light to introduce the proposed legislation, and they've indicated that they may do so as soon as January.