Is there a way to buy an iPhone app and send it to someone?

[GeneL]

First let me say that I don't have an iPhone and probably never will if it means switching to AT&T.

I am now using a Palm Centro on Sprint and our plan for two phones with data and more minutes than we ever use runs around $70/mo.

We have a relative that has an iPhone and I'd like to send her an app that I saw mentioned in the current Wired magazine.

Is there a simple way to send it to her as a surprise for her birthday?

Thanks for your thoughts,

GeneL