iFixit just finished a teardown of Apple's new 13-inch retina MacBook Pro, and the findings are a mixed bag of good and bad news for folks who like to fix their own gear. Compared to the 15-inch retina MBP, the smaller model should be marginally easier to tinker with. But it's still pretty much impossible to repair.
Remember how the battery in the last 15-inch retina MBP was glued into place? Well, this time around, Apple's placed some of the cells into a metal tray held into place with screws—iFixit managed to remove all six battery cells without destroying the anything. There's hope there, at least, for a replacement.