One of the things I love most about my MBP (and all laptops really) is that when the power unexpectedly goes out, work is not interrupted. You may not have a working wifi connection, but you can at least save your work and/or choose to move to another location. While I know there are UPS'es out there with varying degrees of good and bad, why haven't computer manufacturers add in internal batteries to desktops for the purpose of making sure work doesn't get lost or corrupted in case of power outages? It seems like a simple thing to add that serves as a insurance policy. Apple gave us Time Machine because people aren't doing a good job of backing up data on their own - it was their solution to just make things "work" without thinking too much about it. Couldn't this be the same? Obviously not everyone is using UPS's with their setup; hopefully they're at least using surge protectors, but having an internal battery would make me like the Mac Pro/mini THAT much more.