Design (especially UI) is an exercise in solving problems and designers often arrive at similar solutions. That's OK. What matters is whether the user gets what s/he needs, not whether the UI is memorable. Indeed, the less computer administrative debris, the better. I design for a living and the best success I've had is when the UI gets out of the way of the content and task.
"Don't try to be original. Just try to be good."
http://www.logodesignlove.com/paul-rand-video
Design (especially UI) is an exercise in solving problems and designers often arrive at similar solutions. That's OK. What matters is whether the user gets what s/he needs, not whether the UI is memorable. Indeed, the less computer administrative debris, the better. I design for a living and the best success I've had is when the UI gets out of the way of the content and task.