When did this happen? I know there is a straight transfer bonus right now to AA but it excludes travel packages.

The packages are the best use to get miles.

I am at a convention now and signed up too late to get a room at the Marriott. However, a friend is staying there and when I was in his room, I called the front desk to put my rewards number on the stay so he could get free internet and lounge access. Friend doesn't care about hotel rewards points. Will I get credit for the stay if my number is on the room but my name isn't? Or will the number get bumped off after checkout?

My husband did this just a couple of times in the past, when he booked for a coworker (and was logged in, so his number got automatically attached to the reservation. It is very possible you will earn nights and points. If it were me, I'd also put the reservation in your name if it's not too late. Technically you're not supposed to (names must match) but errors happen.