Don't know. I'd guess the online bit would make it tricky (tied to your IMEI number or something?)
I have a QD in the office. Just trying it out with car navigation software in it - works a treat (with bluetooth GPS). I just use a Pay As You Go SIM card in it. Its a surprisingly cheap phone really. If I was upgrading I might consider it (or buy one as a second phone - S60 has some nice apps)