As it stands now (I think they've shown this on Channel 4--we also get E4, so it's annoyingly possible to see the same episode three times in a week--on E4, then on E4's second-chance Sunday, then on Channel 4), Mama Solis took pictures of Gabrielle in bed with the gardener/teenager, ran out in the street, and was hit by a drunken Andrew (Bree's son). Gabrielle took the camera from her outstretched hand before telling the cab driver (Mama Solis' escape car) to call 911.
Andrew went home, Bree was freaking out about Mama Solis on the street, and then noticed that Andrew was crying (i.e., he was the driver who hit her). Bree called her soon-to-be-ex (he'd dropped the divorce papers on her the same day) to say he needed to be there, then they ended the show with Bree and her hub closing the garage door/hiding the car Andrew was driving). So it's unclear whether Mama Solis will live, whether she'll remember anything if she does, whether anyone will believe her accusations if she DOES remember, given she has no evidence, etc.
I've read that the fundamentalists in the States have already been b*tching about this show, saying it espouses adultery. Do they EVER stop?