No other two-year span in the history of consumer electronics has both wrought and promises as much radical change as last year and this new year. While there may have been years with one or two significant product introductions and advancements — 1920: the first radio broadcast, 1939: the introduction of TV, 1947: the invention of the transistor, 1982-83: the introduction of the CD and launching of the first cellphone systems (click here for a list of memorable tech years) — no two-year span has been as chuck full of potentially behavior-changing technology in television, digital imaging, car electronics, gaming and especially cellphones. There is so much happening on so many fronts, even I'm having trouble keeping up with it all. But we can narrow our time frame even further — more like 18 months, from the near simultaneous introductions of the first 3D HDTVs and the iPad last spring to AT&T's pending launch of its 4G LTE network sometime this summer. In between — a series of stunning technological leaps. Here's what I think has and will make 2010-2011 the most memorable tech years ever.

Motorola's long anticipated unveiling of the first Android 3.0 Honeycomb tablet, now dubbed the Xoom, along with the introduction of its first 4G dual core 1 GHz + 1 GHz processor phone, the Atrix 4G, might have been trumped by an unexpected and unique accessory: a keyboard/12.1-inch screen/battery dock. By snapping in the Atrix into the rear of the otherwise dumb "dock," you get a 2 GHz 4G-connected notebook PC running Android.

In this post-Aron Ralston/127 Hours world, every extreme adventurer will want to carry both an iPhone or an iPod Touch and this Spot Connect, which connects you to the Globalstar satellite phone network. Y'know, unless you want your outdoor adventure to literally cost an arm or a leg!

Everyone thinks the big story at the upcoming Consumer Electronics Show starting January 5 in Lost Wages will be the new crop of tablet PCs as everyone rushes to topple Apple. Again. (Good luck with that!) They'll miss the real story at CES: a new 3D HDTV technology.