Everyone who knows me, knows that I think that Facebook is the greatest thing since toasted bread. That is why it is ironic that it is the next subject in my focus on bad UI design.

Facebook has a search box in the upper right corner, where you can try to find long lost friends, interesting groups … etc. However, the textbox has no submit button.

“Why is that a problem?!” I hear you say with alarm … “It looks fine to me.”
The problems is, if you’re on a mobile device, you can’t just hit enter to submit the page. Go ahead … try it.

Its a problem because this critical feature is essentially unusable on mobile devices.I haven’t tried it on an iphone, but I believe you’d get similar results.

The solution?  a simple submit button/graphic like on digg.com