Open Standards and Open Source Response
http://www.cabinetoffice.gov.uk/newsroom/news_releases/2010/100730-government-transparency.aspx
An Extract:
Open standard and open source the way forward
We are committed to the use of open standards and recognise that open source software offers government the opportunity of lower procurement prices, increased interoperability and easier integration. The use of open standards can also provide freedom from vendor lock in. In September 2010, we will publish Guidance for Procurers. This guidance will ensure that new IT procurements conducted by Government, evaluate both open source and proprietary software solutions, and select the option offering best value for money.
I look forward to reading this when it is released.