+1 benny hehehe
btw yeah i've used the restore from 2.1 nandroid backup (not so stock anymore) to flash another 2.2... most of the times its ok.but not advisable.
among errors i've encountered (with/without wipe data after restore 2.1 before flashing)
- IMEI 'lost' = no network access
- infinite loop @bootscreen of newly flashed rom
i'd like to say again..it works but not advisable

Added on March 16, 2011, 12:28 amswiftkey, better keyboard...
my swype works fine...until recently it stop swyping.
then i update it, swyping is good to go.
if you really like swype (which i really do)
i'd suggest you register & download the swype installer, to get latest ver & updates.
i just kinda get the feeling that once a newer version is up, the current version on phone stops swyping...maybe..