Backports.org has released a backport of Kernel 2.6.2 for Debian GNU/Linux 3.0

Here the apt sources:

# Kernel 2.6.2
deb http://www.backports.org/debian stable kernel-image-2.6.2-i386
deb-src http://www.backports.org/debian stable kernel-image-2.6.2-i386
deb http://www.backports.org/debian stable kernel-source-2.6.2 
deb-src http://www.backports.org/debian stable kernel-source-2.6.2 
deb http://www.backports.org/debian stable kernel-build-2.6-1
deb-src http://www.backports.org/debian stable kernel-build-2.6-1