Anthony Bemboom beat out Jacob Nottingham for the Orioles #2 catcher job. Nottingham likely has an opt-out in his minor league deal with the Orioles (I was mistaken yesterday in assuming he'd be subject to waivers. He would not.) I have no idea when that is, though.
If the Brewers wanted Nottingham as their #2 for the first half of the season, he is likely very available for a very low trade price. I would assume that, despite the yo-yoing he did last year, he'd be happy to have an MLB job, even if it were only for half a season. I suspect we'll find out later today.