In one of our early Google Now rumors, we described the possibility of "inferred events," or events that Google would grab from your Gmail (or other Google services) and present as a card in Google Now, with the option to add an entry to your calendar.
Today, it looks like the service is being switched on for some users, with Gmail being the first target (as we speculated previously). Read More
A few days ago, we posted a rumor we felt pretty confident in that would see "who" added to Google's "when" and "where" options for reminders. We now have another rumor, from a source familiar with the matter, which is also related to Google Now's ever-expanding functionality.
: No matter the confidence level, there's always a chance product updates, features, and some or all details will be changed or cancelled altogether.