This morning I was wakened by a cry at 6:22am, her normal wake up time is 7am but we suspect she's been waking up early and dozing/playing in her crib until we get her at 7. I found her lying next to the rocker, not sure if she had been sleeping there since she was babbling about a sock and continued non-stop chatter as I changed her diaper.
We removed the crib from her room per your recommendations blog readers (thank you, this simple advice had not even dawned on us) and spent the evening talking about the big girl bed.
I suspect she woke up early this morning and played in her room for a bit before falling asleep on the floor and woke me when she got uncomfortable. Unless we set up a night video camera we will never know.
I think we are doing fairly well since she's staying asleep from 8pm - at least 6am so we will keep working on this. At least I'm comforted that she doesn't have a crib to mourn in the room and it's just a matter of getting black out curtains for the windows to keep the sun out and maybe that will keep her asleep longer.