You know how those Korean electronics makers are. One does something -- such as a Windows Phone 7 leak -- and the other has to go and try to match or better the feat. Samsung has today easily outdone LG, whose Optimus 7 only revealed some press pics, with a thorough video exposition of its i8700 WP7 handset. We're hearing references to this phone being called the Omnia 7, which makes sense, but is at present not something we've been able to verify. So what m