British Educational Communications and Technology Agency (Becta) has released a report http://publications.becta.org.uk/download.cfm?resID=35275 that recommends schools in Great Britain not to consider upgrading to Microsoft Vista and Office 2007 unless they can upgrade all computers at once and has a direct benefit of such upgrade.
The report from Becta has been referred to in the Danish media over the last few days. (http://www.version2.dk/artikel/5884 and http://www.computerworld.dk/art/43644)
A journalist from the Danish computer magazine Computerworld.dk has asked about such report in Denmark. Vice President Per Thorbøll of UNI-C http://www.uni-c.dk/generelt/english/index.html explains that they don't have money nor authority to do a similar report in Denmark, but as he says:
The conclusion is of cause from Becta, but the computers are the same and the Windows versions are the same. So I think that the situation in Denmark is quite close to the British.
This is as close as he can get to a confirmation without confirming.
UNI-C is the Danish IT Centre for Education and Research and hosts and supports IT for almost all the Danish schools and universities.