Google (GOOG) let the cat out of the bag a little too soon on its Canadian Google Finance announcement. A post at the Official Google Blog that went up at 12:05 p.m. PST on Friday was titled, “Now there’s Google Finance for Canada”. Dion Loy, a Google Finance engineer, appears to have updated that post, saying, “Oops. We hit the button too soon. Watch for news about Google Finance in Canada next Tuesday.”