I said sneaking it in because it is unclear how they will promote such processor. Gobi 750GX with SIMD is pretty much a G4. But there is the issue of professional line and consumer line which is determined by G4 or G3. So it might make sense that they don't make a big deal out of G3 with SIMD and just sneak it in as faster G3 not a G4, even though Gobi 750GX is virtually a G4.
This could change once 970 hits the market, which will probably be called G5.