Yes - it took us a while to track down why he told you he was going to Toronto, but now we know.
He should have told you more about the project. We went as far as to check film permits in Toronto, but Martin's name wasn't on any of them. I think the Hollywood Reporter finally clued us in.
I have Google and Yahoo "alert" me whenever a news item appears about Martin. Many of them are not too informative, but it does let me know when he gets a new project or if he is going to be making an appearance somewhere.
I had a friend who got an "alert" about some WW cast members doing a benefit listed in a Florida newspaper, to her email in England. The performance was that night, and no where did it appear in any Los Angeles area papers. I managed to get tickets, and spend the evening with Martin, Stockard Channing and several other West Wing cast members.
Next "appearance" is supposed to be at the Malibu Country Mart on August 20th - if Martin has finished his movie and not had to go to Ireland to start college.
I have a feeling that Martin won't be home for his birthday (August 3rd) and may only be stopping at home for a short time before heading to Ireland. He probably won't have much time for letter writing. He will be doing homework.