I've definitely had a couple of Pokémon dreams before, yeah. They were rather enjoyable!
If I remember right, my most recent would have to be the one I've had about six to seven months back; in this dream, it was summertime, and I was out with couple of my buddies for picnicking. Under a tree, I found myself playing Pokémon Emerald on my phone (via an emulator of sorts, possibly), as there wasn't much to do (likely would have hanged around with others, but they seemed to have been laying down with eyes closed, so I probably did not want to disturb).
Aside from above, I also remember a dream where I was in the anime (an episode of Advanced Generation season, to be precise; back then, I was heavily addicted to their anime series, as their content were more interesting to me than they are now), battling against May in a contesting center of sorts. It was fun. Sadly, I don't believe I ever got to finish, since I wound up waking up mid-way through the match.