Marco Arment wrote an excellent post tonight:
As part of my 2012 computer-setup shuffle, I also replaced my laptop with a Retina MacBook Pro, and the first thing it screams for is a high-resolution desktop wallpaper. Great, I thought, I’ll just use one of my photos. (On my desktop, I use a solid gray background, but on my laptop, I like to have a bit of fun. And it would be a crime to put a solid gray background on that screen.) Almost nothing I’ve shot since 2010 is usable. Marco came to this realization because he has been using his iPhone 4 and now, 4S due to it being the first iPhone camera that was a "good enough" replacement for an actual point & shoot camera. And because you always have your iPhone with you, it is way easier to use what you have in your pocket than go hunt for your DSLR or carry it around with your when you're out of your house. I do the exact same thing, and have done so ever since I got my iPhone 4 in the summer of 2010 (which I've now replaced with a 4S as well). Marco makes an excellent point though, we're all going to regret this in 5-10 years when all of our screens are Retina-class and the photos we took from 2010-20?? look like shit. Marco's solution is to go back to using his 5D MK II. I only own a Canon 40D myself which is really showing it's age. Because of this, and because I do not have a spare $3000 I can afford to spend on a 5D Mk III, his point has me browsing Amazon.com and looking at Canon's recent small point & shoot options. The S100 looks like a solid candidate. Off to DPReview I go... Update: John Yuda makes an excellent point.
@joelhousman higher resolution on tiny-sensor cameras is a mixed bag. It also increases digital noise. Get a used slr instead.— John Yuda (@yuda) July 1, 2012