In fact, I wouldn't be surprised to see the Magic Trackpad become the standard pack-in after Lion ships. I'd take the trackpad, personally - you can get a much more comfortable third-party mouse for far less than the $69 either Apple accessory costs separately, and it's clear that gestures will play a big part in OS X Lion when it arrives. The standard peripherals are now wireless by default the Magic Mouse is standard but you can switch to the Magic Trackpad for no charge, an improvement from last year. It's less of a problem on a desktop than a constantly-mobile laptop, and glossy displays are ubiquitous in the consumer space, but it's something to consider. Of course, you're stuck with the iMac's super-glossy display finish, which I don't really mind, but some find incredibly annoying. The iMac still has one of the best displays of any all-in-one That ambient light sensor also works as advertised - which is to say, just like the one on the MacBook, MacBook Pro, iPhone, and iPad. (For comparison's sake, it costs around $1,000 to get an equivalent 27-inch panel in an external monitor like the Dell UltraSharp U2711 or Apple Cinema Display.) Apple also says that every iMac is individually color-calibrated at the factory, which is a nice touch, especially on a consumer machine that may never otherwise be adjusted. Both models sport an LED-backlit IPS panel the 21.5-inch model offers 1920 x 1080 resolution while our 27-inch tester cranks it up to 2560 x 1440. The iMac has long had one of the best displays of any all-in-one, and nothing's changed in this generation.