Well, thanks to Ubuntu I'm now running the new (new!) 2.6.30 kernel on my systems.

No ill effects as of yet...

Btw, I've written the following script to download the latest kernels from Ubuntu:

SYNOPSIS: latest 29.4, this will fetch 2.6.29.4 or latest 30 which will get 2.6.30.

#!/bin/bash
# download the latest ubuntu mainline kernels
ubuntu="http://kernel.ubuntu.com/~kernel-ppa/mainline/"
version="2.6.$1" # need 29.n as argument
arch="i386"  # or amd64
major=${version%.[0-9]}
minor=${1%.[0-9]}
patch=${version#2.6.*.}

[ -z "$1" ] && { echo -e "Usage: $0 MINOR\n$0 29.3"; exit 1; }
[ -n "$2" ] && arch="$2"

if echo "$patch" | grep -q '\.'; then
printf -v versionstr "0206%d" $minor
else
printf -v versionstr "0206%d%02d" $minor $patch
fi

printf -v generic "%s-${versionstr}-generic_%s-${versionstr}" $major $major
printf -v all "%s-${versionstr}_%s-${versionstr}" $major $major

echo "${ubuntu}v${version}/linux-headers-${generic}_${arch}.deb"
wget --progress=bar "${ubuntu}v${version}/linux-headers-${generic}_${arch}.deb"
echo "${ubuntu}v${version}/linux-headers-${all}_all.deb"
wget --progress=bar "${ubuntu}v${version}/linux-headers-${all}_all.deb"
echo "${ubuntu}v${version}/linux-image-${generic}_${arch}.deb"
wget --progress=bar "${ubuntu}v${version}/linux-image-${generic}_${arch}.deb"