I'm going to start with: I really want a new Retina Display-powered Apple MacBook Pro, like, really bad. But, Google have just announced that their first version of Chrome that supports the eye-busting 2880x1800 resolution is, already here. Yes. It's out, available in the experimental Canary channel.
Google have said they are "committed to polishing Chrome until it shines on that machine". Canary builds are experimental, and are considered the "bleeding edge" versions of Chrome. These builds aren't even tested before they're released, so it's always a case of not having much expectations of how it should run.
But, if you're rocking the new Retina Display-powered MacBook Pro, you can test out just how gorgeous that high-res screen looks on Chrome. Google have said that the current build in the wild already shows "the early results" of their work on bringing high-resolution support to Chrome. The developers are "off to the races to make Chrome as beautiful as it can be".