technology probably won't change when it comes to twins.
as a whole there really hasn't been much change in technology in the past 5 years. core materials are the same (wood, microcell foam, fiberglass) and construction is the same (sidewall, cap). now i think you'll see companies playing around with shape but that's mainly it.
the big technology is in the high-end carving skis but even then it really hasn't changed that much in 5 years. if you want to look at major changes look at boots! more companies using polyether rather than polyurathane making the boot less reactive to temperature, more models emerging with a built-in booster strap, new heel-hold design from salomon in the falcon/gun boot, lighter weight materials for freeride boots, shock absorbing bootboards, inverted buckles, etc... the ski boot is where you're going to see more technological changes than probably anywhere else in the industry. well, hopefully someone figures out how to make snow above 0/32degrees