iPod Touch -- where did the file go?

[prymsnap]

Via my laptop I uploaded an .mp3 file to the service "YouSendIt" for a client. YouSendIt's standard practice is to then send you and the recipient an e-mail with a clickable link that downloads the file. I happened to be killing time at an airport when I received this confirming e-mail on my iPod Touch and clicked on the link within the e-mail. Safari opened and offered me a page with a download button. I clicked it and my .mp3 played.

Afterwards I thought it would be interesting to see where the file resided on the Touch. Couldn't find it anywhere. Can anyone give me a clue as to where these kinds of files reside on the Touch, if at all? Is there some kind of file search function within the Touch OS that I overlooked when scanning the user guide? Thanks.

[Seacrest]

The touch plays mp3 files in its temporary memory.
There is no user-accessible file system on the touch.

There may be ways on "jailbroken" touches to access the file, but that discussion is beyond me.

[prymsnap]

I'm really on the fence about the whole jailbreaking thing. Any thoughts, pro or con, would be appreciated.