xbee communication between several boards.

Hi all.

Im just wanting to know if i can tell several xbee arduino boards what to do simultaneously?

i.e. im planning to have 30 xbee turn a switch (or several) on and off with either a laptop or preferably another xbee arduino board.

Any thoughts would be greatly appreciated!

Reaction time - from hitting button to switch being on and off (any delay?)

Batterie life?

ta. JK