Several people at my office have noticed this: It seems like today GMail has reordered the contacts for email address autocomplete. Several of us (even outside our company) have ended up accidentally emailing people's personal email accounts instead of work emails. This seems fairly serious to me if this is happening to more people. I've gotten about a dozen emails today sent to the wrong address which makes me think other emails may be going to completely different people.
Yeah, same here. Typing in "jeff" it's pulling up every random jeff from my history instead of the one jeff I email practically every day. He's shunted down to below all the others in an 'apps' area at the bottom of the suggestions. wierd.
Yes, I saw it today too in all my autocompletes on my work e-mail. Wonder what's happening? Our bookkeeper sent stuff to a personal account today too.