The Austin Chronicle took a look at the Perry impeachment talk and makes some sense of it. They summarize:
[T]he Big Push to impose casinos into Texas – under the guise, like a streetwalker in a cheerleader skirt, of funding public schools – is just not going away. Likewise, questions about growing coziness between gambling interests and state politicians will not disappear just because Perry's spokespeople say they're "sad and disappointed" about the impeachment inquiry.