> > > I am curious about one thing in these compacts, that was never > addressed in any of the previous models... > > Shutter. > > Is it possible to half-press the shutter to achieve AF or AE lock, > keep it depressed AND shoot a timed series by depressing it further, > variable FPS? That's the way most real photographers do a series with > SLR... None of the advanced compacts had this, last time I looked at > them (5MP types, G5, Oly 5060,...)
Canon had this capability in the G1 - I've used it many times. I'd be really surprised if it went away in later PowerShot G-series models.

