As for rolling, she was rolling back-to-belly at about 3 months, but didn't roll belly-to-back until like 6 months, pretty late.
She was sitting up by herself by about 5 months.
She army-crawled at 6-7 months, and did that for a long time (and was FAST at it). Didn't fully go to cross-crawling until 9 months.
She's not walking yet at about nearly 10 months, but is "cruising" on furniture. I expect she'll be walking by around 12 months.
So, some things she's been a bit early, on some a bit late. I'm not too fussed about gross motor skills, though, since she came a month early and supposedly babies that come early tend to lag behind on gross motor skills-- she's had a steady progression so I haven't had any reason to worry about anything.
She has been a very, very talky baby from a pretty early age, and always babbled and laughed a LOT. And from the women I've talked to with babies around my age, it tends to sometimes be a trade-off-- talky babies sometimes don't do the gross motor skills until average or a little later, babies with early motor skills don't babble as much.