I am sorry to hear that you need to reflash. However, I have rebooted mine after the update and things seem to work fine. for the record, I have following apps installed on my unit before install of the newer SSU:
3g/2g/dual mode
adblock plus
advanced clock plugin
advanced interface switcher
advanced power
advanced power monitor
applocker
aptitude
aptly
ati85
batteryGraph
CSSU features configuration
CCSU transitions tuner
calender home widget
conky
conversationmodder
conversations inbox desktop widget
conutdown timer
cutetube
desktop switcher
eSpeak - cli
eSpeak - extra dictionaries
espeak GUI client
emelfm2
enhanced power kenerl 46
extended cal log
extmou
extra decoders support
faster application manager
filebox
fm-boost
fmtx-faker
gps recorder
gpsjinni
garnet-vm
gconf-editor(qole's version)
glogarchive
glom
gonvert
gpscorrelate-gui
hen
htop
infozip unzip
infozip zip
kernal-module-ntfs
leafpad
libqtm*
load-applet
lzma
mstardict
maemo-select-menu-location
mappero
mediabox media center
modrana
n900-fmrx-enabler
ncalc
netmon
ogg support
ovivoiceserver
opera-mobile
personal dataplan monitor
personal ip address
pidgin extra protocols
pidgin internet messenger
pidgin language support
pidgin status menu plugin
pidgin protocols plugin fro conversation and contracts
portabase
powatool
pykate
qinventory
queen beecon widget
recorder
rootsh
savecup
shopper
simple brightness applet
simple fmtx desktop widget
someplayer
speedcrunch
stroke order chinese input method
swappolube
tv out control desktop widget
tar-gnu
tracker-cfg
tff-droid
tff-wgy-microhei
tweak flash plugin version
unzip add-on for the file manager
wizard-mounter
world clock widget
xarchiver

I hope this list may help. If nothing else...I have not realized that I got so many stuffs installed already.

Good luck.