Pros: easy to use, Simple controls/menu, Nice features/settings, excellent image quality, Lightweight/Portable, good battery life, durable, viewfinder, indexed wheel selector, very ergonomic, rugged and damp resistant
Cons: Missing features/settings
After using and being extremely pleased with a Canon A40 for 7 years (it has survived everything from a dusty archaeology field camp in the Wyoming mountains to multiple sea kayaking trips), I had recently "upgraded" to a Canon SD790IS, only so I could have the 10mP higher resolution and film longer video. HOWEVER, though the 790 takes fabulous photos I found it lacked features of the A40 that made me go back to using the old camera. I shoot a lot outdoors in bright sunlight, especially sea kayaking. I've found having a viewfinder on the camera is important (the 790 lacks one). In high glare conditions it's hard to see the digital screen plus it is much easier to frame a shot and brace the camera against motion if you are holding it up to your eye. Also, the touchy "Ipod" like function selector wheel on the 790 is a real pain in a rocking boat, having damp hands and wearing paddling gloves.
I like that it has the front-extending lens rather than the clam-shell type opening of many compact modern cameras -- many friends have had difficulty with those clam-shells jamming or otherwise malfunctioning.
So I recently bought an A1000. Both the A40 and the A1000 have a solid indexed dial -- I can change settings with gloves on and my eyes closed. Also, the sturdier chassis with the bulging handgrip is much more secure to grasp and shoot with. My experience with the A40 was that it held up incredibly well to rough use (I've dropped it a lot!) and moisture (I've never dropped it in the drink but it's gotten splashed, rained on and damp quite often.) Almost all of my kayaking friends have had trouble with their slimmer, touchscreen cameras after using them while paddling, even without dropping them in the water. Never a problem for me with either A model.
Though the A1000 does not have as many features as the 790 (which I will keep for less adventurous use) it has all of the qualities I liked in the A40 (sturdy housing, viewfinder, indexed wheel selector) plus it is more compact and has the higher pixels. I also like that it uses 2 standard AA batteries rather than an exotic camera-specific unit like the 790 has.
I noticed that other reviewers complain about battery life -- it's obvious they were using disposable alkalines (a big no-no both for durability and the environment). They should have bought a set of high-output rechargeables. You can buy 4 with a charging unit for $20 -- I already had 8 of these from the A40 (which takes 4 AAs) so I always carry a spare set or two. The first 4 I bought back in 2002 are just now starting to not hold a charge as long -- that is after literally hundreds of recharges! Do the math -- rechargeables have probably saved me close to $1000 over buying alkalines (why would anyone do that??) I took 400 shots and 15 minutes of video on the first pair I put in the camera -- can't complain about that (most of the shots were NOT flash, I admit -- that would have used up more.)
So far I have loved the A1000 -- have taken it sea kayaking and hiking as well as used it indoors and out for landscape and portrait shots. The video quality, including sound, is quite good. Downloading is a snap with the USB cable.
The only shortcoming I have found is not great depth of field and the macro is not at the level of the 790.
I am sorry to hear that the A1000 is being discontinued. Anyone that wants an easy-to-use and very rugged digital camera that is outstanding for outdoor sports should snap one of these up while they can. This would be an excellent first digital camera for an older child due to simplicity of use and the ruggedness.