Over the years, many features have disappeared from one or more iMac models: 1. Expansion slot (The mezzanine slot on the original iMac) 2. Reset/interrupt buttons 3. I/R port 4. Modem port 5. FireWire ports 6. Power/sleep indicator 7. Easily accessible power/sleep button 8. VGA port 9. Front speakers directed at the user 10. Easily expanded memory on all models 11. Optical drive 12. User replaceable hard drive 13. Side mounted ports 14. DVI port 15. Tilt/height adjustable keyboard 16. Industry standard hard drive without a wonky thermal sensor 17. Disassemble without need of a tape and glue kit 18. Matte screen 19. Fan-less operation 20. Number pad on the included keyboard 21. Audio input 22. Keyboard with real keycaps instead of Chiclets. I'll guess that Apple will drop the SD card port along with user accessible RAM on all models. The excuses, if any, will be lame. Hey, Apple will just sell you an SD adapter, or more high priced memory up front. The Ethernet port is also a candidate for elimination, at least for the lower end models. And perhaps the four USB ports could be reduced to only two. You can always get a hub. But rapture and joy, the latest iMac just might be a half millimeter thinner!