I have noticed that Microsoft on the 13th April updated their policy regarding service packs. Under the old policy a customer would have to be running a service pack that was still supported before being eligible to receive support. The Service Pack Support policy has been revised to provide customers with limited troubleshooting on unsupported service pack versions.
The new Service Pack Support policy enables customers to obtain support as follows:
Limited break/fix support incidents will be provided through Microsoft Customer Service and Support; and through Microsoft’s managed support offerings (such as Premier Support).
There will be no option to engage Microsoft’s product development resources, and technical workarounds may be limited or not possible.
If the support incident requires escalation to development for further guidance, requires a hotfix, or requires a security update, customers will be asked to upgrade to a supported service pack.
Full details: http://support.microsoft.com/gp/newsplifecycle