Some of you Samsungers are probably anticipating the snazzy Wave 578 due out in May or June outside the US, but the sad news is it won't be shipped with the upcoming Bada 2.0 OS. Fret not, though, as Russian blog Bada World claims to have obtained some juicy details that'll cheer up Bada fanatics. The above slide -- apparently sourced from a Samsung France conference from a few days ago -- lists a pair of new but unnamed handsets that'll pack the new software, along with 7.2Mbps HSDPA, Bluetooth 3.0, a