Again, snagged from Stacie:

10th Month Developmental Milestones

90% of babies can…
stand holding on to someone or something - yes
pull up to a standing position from sitting - yes, although very wobbly.
object if you try to take a toy away - oh my god yes
say “mama” or “dada” indiscriminately - yes
play peekaboo - loves this game
exchange back and forth gestures - yes

75% of babies can…
get into sitting position from stomach - yes
play patty-cake or wave bye-bye - just learned how to wave bye-bye last week!
pick up tiny object with thumb and finger - yes
walk holding on to furniture - no, but it’s not for lack of trying. We haven’t really let him yet since we moved and need to babyproof the place better.
understand “no” - yes, although he doesn’t listen to us. Teenager.

50% of babies can…
stand alone momentarily - no
point to something to get needs met - sometimes
say “mama” or “dada” discriminately - not yet, but I haven’t really paid all that much attention.

25% of babies can…
indicate wants in ways other than crying - yes
play ball (roll ball to you) - haven’t tried that yet - I should do so!
drink from a cup - sort of, with a lot of assistance
pick up a tiny object neatly - yes
stand alone well - thank god, not yet
use immature jargoning - if by this you mean babbles, yes
say one word other than “mama” or “dada” - no
respond to a one-step command with gestures - not really
walk well - no