Another excellent article, thank you, Craig.
I used the Pro 1, PRO90, TX1 and SX1, and still have all but the SX1 (I now use a G3X). I think the Pro1 was my favourite - and who doesn't love an 'L-Series' lens on a compact! The TX1 exuded quality, but I know that some users really struggled with its ergonomics. Personally, I really enjoyed using it - an astonishing lens reach for the time, all packed into such a small body. The power-zoom ring of the Pro90 was a pleasure to use.
Again, with the exception of the SX1, I seem to have been great at purchasing one-off designs from Canon - I would have loved a second generation of any of those previous cameras, or the G3X. I hope that a 24-240+mm photo-centric version of the V1 lies just around the corner - my G3X is on its last legs!
French Sunset (04-10-2009) - Canon PowerShot SX1 IS - 1/500s | f/4 | ISO-80 | 15mm
Quite a challenge for the camera to handle this contre-jour shot, and of course, there is longitudinal chromatic aberration on the children, but there's so much else going on with the sunset colours that it doesn't detract too much. To this day, I use this image as the wallpaper on my iPhone.