Sony has officially... symboled its new digital SLR series, a long time coming since they acquired Konica Minolta's digital SLR resources. The new digital SLRs will be α, the Greek letter alpha. No, we don't know why, either, but we think it's to drive every copy editor on the planet insane.
They will use the same lens mount as previous. K-M's dSLRs were known under the Maxxum brand name here, but were in fact called "Alpha" (the word, not the symbol), themselves in Japan. Unfortunately, Sony didn't say much else about their new dSLRs.