Huge Improvement over the SX30
Only had the SX40 for a week or so, but already I can see how much better it is than the SX30 it replaced. The noise level on the photos is less, the IS is absolutely phenomenal even at the longest zoom. Amazing how rock steady the video is.
10 frames per second is darn fast, and works as advertised.
Canon finally figured out the megapixel race needs to be limited to a reasonable amount that is based on the sensor size. 12 megapixels for this camera looks to be the sweet spot. Much improved over the 14 megapixel sensor of the SX30. The reduction in pixels, coupled with the Digic5 processor and whatever other improvements Canon made to reduce noise has done a great job. The photo and video quality just blows me away. Remind me why I have a Canon 60D. (that's joking, but not by much, the SX40hs really is a great camera)
If Canon ever figures out how to get something like the SX40 to have the nonexistant shutter lag like a 60D, it may spell the end of DSLR's for anyone but true professionals.