
TeroSNS |
I would think not, as whirlwind attack is an attack of its own kind, while the 11th ability references to a normal full attack.
And it as well causes confusion by the rules of whirlwind. By the looks of it you could get theoretically get an attack towards anyone within walking distance. Can you make an attack to the same target multiple times?

Darche Schneider |

Whirlwind says "when you use the full attack action." In otherwords, you've gotta use the full attack action first, then Whirlwind can modify that. Unlike spring attack which states "As a full round action you can.."
It would be one attack per target, so no, only one attack.
Course someone pointed out that Dervish is a tad lazy with its wording, and forgets to put in things like "action" or "Base attack" in some of its things.

Darche Schneider |

I'm thinking that by the way the two features are written, plus the thematicness of a dervish (whirling around) that they could attack every target in their melee range once, except whoever has the highest bonus to hit.
One of the GMs I know says though that using them together removes every attack instead, as it is "one attack" each time.