Have a Mighty mobile meetup, interface intelligently, or talk to some real rocket scientists in today's Valleywag Calendar.

Earlier today, we asked about Yahoo's Brickhouse — the ostensible incubator of innovation in San Francisco's South Park charged with reviving Yahoo's reputation for Web cool. Departures from the Pipes project, the only notable product release from Brickhouse, raised questions about the operation. Brickhouse head…

Remember Yahoo Pipes, the "interactive feed aggregator and manipulator" — in other words, a website meant to help people build simple Web applications? It launched to some fanfare last February, with many taking it as a sign of Yahoo getting its mojo back. We hear that the project is starting to "implode," as our…