quick question hopefully simple answer

hi,

- got ipad (at last)

- forgot to pick up microsim (to excited that I'd got the ipad)

- have a micro sim (sent to me from o2 as a hint to buy an iphone)

- can I put this in ipad and use as data sim instead? (as Itunes is getting narky telling me to put a sim in)

sorry if this is going to generate abuse thrown at me!