Not that we wont miss RTD, his name is so easy to write... hah, no seriously, Mr Davies was a very good head writer, and he's come a long way since his Chuckle Brothers era, but he's decided to step down and I wish him well.
Anyway, this is what the BBC news people have to say about it:
Russell T Davies is to step down as executive producer of Doctor Who, the BBC has announced.
Davies is credited with breathing new life into the show which he brought back to television screens in 2005.
Bafta-winning writer Steven Moffat will succeed Davies as lead writer and executive producer of the fifth series of Doctor Who.
Davies will remain in charge of four specials to be shown in 2009.
The fifth series, with Moffat at the helm, is scheduled to be broadcast on BBC One in Spring 2010.
Moffat has already written some of the most memorable Doctor Who episodes of recent times, including The Girl in the Fireplace and The Empty Child.
Earlier this month, he picked up the best writer Bafta for the Blink episode of series three which featured terrifying weeping angels.
Moffat said: "I applied before but I got knocked back 'cos the BBC wanted someone else. Also I was seven.
"Anyway, I'm glad the BBC has finally seen the light and it's a huge honour to be following Russell into the best - and the toughest - job in television.
"I say toughest 'cos Russell's at my window right now, pointing and laughing."
Hooray for Moffat!