Update:I realised what you're talking about, and managed to repro (on Terra and Safari--though I investigated on Terra)
Devs: the bug is as follows:
Whenever logged out (or possibly when you have less rep), if you try clicking any link on a post, it first shows the feedback buttons. Clicking again makes it work. This includes: links in the post, links in the comments, the [link] link, [improve this answer], usercard links, "edited x minutes ago", tags, and the vote button (on the second click the vote button gives the "login to vote" thingy)
Note that this happens in a mix-and-match manner. On the first click on a post, the feedback form shows up, but the click is absorbed. Once the feedback form is up on a post, all the links work, not just the one you clicked. You can make the feedback form go away by clicking on another post.
Since it doesn't work in two iPad browsers, I suspect it has to do with
mouseover interfering with the event bubbling--tablets deal with these events in a confusing(yet necessary) manner.
I can't reproduce this (iPad 1, iOS 5.latest-whatever-it-is).
If the feedback form shows up, you're not logged in. Is your username there at the top of the page?
You can always switch to the mobile view via the link at the bottom of the page.
See also: Site theme for tablets
Also, you shouldn't be able to comment anyway (except on your own post) till you get 50 rep.