normal!

I didn't get any stamps either after I passed the interview. Officer in that local office told me they no longer stamped passport anymore and I would receive the card in 2 weeks. Acturally, I got the card in 8 days.

I forgot to give the original I-94 (B1/B2) back to officer. I had 2 I-94, one is for B1/B2 VISA, one is for L-1 VISA notice. I just give I-94 (this I-94 comes from L-1 VISA notice) back to officer. I didn't EAD card since the whole process took only 4 months. But immigration showed me my EAD and AP approval notice when I passed the interview. Officer said I didn't need them and I was resident already since I passed the interview. So you don't have to give all of them back to officer if they didn't ask for them. EAD and AP will expire or not useful once you are a resident. I-94 is no big deal. Just take them away and put them in your safe.

I guess your information on Immigration website will be updated very soon. Check it out frequently. And congratualations!

By the way, my case is marriage-based too. NY