shilsen said:
As written, you would get skirmish damage under the circumstances you mentioned. The errataed version of the ability says a scout "deals an extra 1d6 points of damage on all attacks she makes during any round in which she moves at least 10 feet away from where she was at the start of her turn. The extra damage applies only to attacks made after the scout has moved at least 10 feet."
So if you move 10 ft and ready, you would get the damage.
As written, you wouldn't get skirmish damage under the circumstances you mentioned. If you move 10 ft and ready, you won't get the damage.
shilsen, you didn't quote the entirety of the errataed skirmish ability. Remember, the errata only affects the second sentence of the text.
Original text:
A scout relies on mobility to deal extra damage and improve her defense. She deals an extra 1d6 points of damage on all attacks she makes during any round in which she moves at least 10 feet. The extra damage applies only to attacks taken during the scout's turn. This extra damage increases by 1d6...
Errata: The second sentence of the skirmish class feature
should read as follows (new text indicated in red):
She
deals an extra 1d6 points of damage on all attacks she
makes during any round in which she moves at least 10
feet away from where she was at the start of her turn.
The extra damage applies only to attacks made after the
scout has moved at least 10 feet. The skirmish ability
cannot be used while mounted.
This update should be made wherever the skirmish
ability description is presented (see also pages 31, 56,
and 177).
So, the revised text:
A scout relies on mobility to deal extra damage and improve her defense. She deals an extra 1d6 points of damage on all attacks she makes during any round in which she moves at least 10 feet away from where she was at the start of her turn. The extra damage applies only to attacks made after the scout has moved at least 10 feet. The skirmish ability cannot be used while mounted. The extra damage applies only to attacks taken during the scout's turn. This extra damage increases by 1d6...
The key point to note is that even after the errata, "The extra damage applies only to attacks taken during the scout's turn".
And as I2K pointed out, "The ready action lets you prepare to take an action later, after your turn is over but before your next one has begun". It's not important how one defines a round - whether it's from initiative count to initiative count, or from start-of-initiative-cycle to end-of-initiative-cycle; it could certainly be argued that the readied action (and any AoOs) are occurring during the same round that the scout moved. But it's clear that the readied action (and any AoOs) does not occur during the scout's
turn; the readied action explicitly occurs after the scout's turn is over, making it ineligible for skirmish damage.
The AC bonus, on the other hand, lasts until the start of the scout's
next turn, so it will still be in effect when the readied action occurs.
-Hyp.