What I have noticed among friends who are with TSC, they received FP notice anywhere between 15 to 45 days. Some recvd their EAD/AP before FP. So, I'd say wait till tomorrow and then send them an email after checking your mailbox tomorrow.
Another update: Received EAD approval and mailing msgs today. One msg at 4:00 AM and other one at 7 AM PST. First one said Card production ordered on 02/21, 2nd msg at 7:00 AM said Card mailed on 02/23. AP was approved on 02/17 and mailed but have not received it yet.
PD: 05/01/2008
ND: 01/22/12
FP: 02/02/12
EAD/AP: 02/23 and 02/17 (approval dates, waiting for actual card in mail)
I485: waiting
SC: TSC
EB2I