Ian Wylie of the Manchester Evening News posted a report from today's press launch for Series Four.
The evening began with an introduction from Controller of BBC Fiction Jane Tranter, who enthused that "this fourth series of Doctor Who is our best yet".
The first two episodes (Partners in Crime and The Fires of Pompeii) were screened, followed by a question-and-answer session with Executive ProducerRussell T Davies and series stars David Tennant and Catherine Tate.
Wylie relates some of the highlights of the evening and promises more detailed reports in days to come. The article is mildly spoiler-ridden.
Also reported by BBC News.