All it does is load your site in an iFrame...it does nothing with user agents or zoom. Basically the same thing as resizing your browser.

This is a neat little app, however I was able to see flash!!

It doesn't use the UserAgent either.

uh, looks nice, except that ipadpeek supports flash, but the ipad does not

hey, this has already been posted!

Repeat my comment: it supports flash. FAIL