We think she means "popsicle" because purple is the color of popsicle Maggie usually asks for and Kate says purple while banging on the freezer door. She says it very clearly. I think she's going to pick up the talking thing a lot faster than Maggie did. She does hear more conversation with an older sibling. She also says:
pots (my teapots in the china hutch)
I don't know (we think that's what she's saying)
two or too (I can't figure out what she means by this, but she says it a lot)
She still does not say Maggie or anything like it!