The following packages are available for x86 in grml's pool but not for amd64. 
Several of them also don't have a repository at http://hg.grml.org/ yet.

The list has been generated by:

/usr/share/grml-live/scripts/repodiff.pl | grep -v 2.6. | grep -v "is the same" 
|grep 'does not exist on repo2' | awk '{print $1}' | sort -u

aesutil
afflib
asleap
bar
bfa
btsco
classpath
classpath-qtpeer
cmospwd
cpuburn-in-binary
ctapi-cyberjack
ctris
ddrescue
dd-rhelp
ded
deletemail
devscripts
dired
dupseek
dynamic-disk
ex
ext3rminator
firescope
ftpbackup
fvwm-crystal-minimal
gateguardian
gatling
gcjwebplugin
gifshuffle
glipper-nognome
grml-ddcxinfo
grml-reportbug
grml-robocup-files
grml-samsung-x20
histring
hydra
i855crt
icmp-mtu
icmp-quench
icmp-reset
lame
lame-extras
libewf
magicrescue
multiseat
ncp
prosilla
pspax
ptfinder
quadkonsole
rootsh
salvage-ntfs
scrounge-ntfs
shadowfs
shish
shmux
speechd-up
squashfs
ssdeep
sudosh
tal
thc-pptp-bruter
tlswrap
tpm-tools
trapdoor2
trousers
yersinia