I put in the porting request on Sunday, collected the SIM card after lunch yesterday, and line was activated sometime last night while I was sleeping.
Was told while collecting the SIM card that it'd normally take 1 or 2 working days, if there's no hiccup.
Received a porting in-progress email after I collected the SIM card, then a $0 invoice past midnight. SMS on successful porting received a couple of hours after that.
I already put the SIM card into the phone before I went to bed, with all settings done, since the slot was empty anyway.