Vista and Bitlocker

Microsoft Vista is slated to have a new method of encryption in place call Bitlocker. This is a major problem for forensics to search files on employee devices. See the BBC article at:

UK holds Microsoft security talks
By Ollie Stone-Lee
BBC News political reporter
http://news.bbc.co.uk/go/pr/fr/-/1/hi/uk_politics/4713018.stm

Anyone care to chime in on this?