Yes it works, "dp" are meant to be of the same physical size on all devices (even though there are badly implemented firmwares where it differs). What I mean is

Yes it works, "dp" are meant to be of the same physical size on all devices (even though there are badly implemented firmwares where it differs). What I mean is - these best-practice sizes should somehow be implemented (On ICS, buttons seem to have a min-width of >= 48dp per default - but there also ought to be layout helpers for spacing etc.).