Over the past week, I've spotted almost every Alpha Team (Arctic) set in this new sub-line at various LA-area TRUs, the only one I haven't seen yet is the 4745 Blue Eagle vs Snow Crawler. For those who don't know about this new Alpha Team sub-line, it's an arctic theme and the A.T. vehicles all transform a la the old MASK line (one of my favorite lines)... you can see all of 'em at Lugnet. The boxes have lenticular images that show the set transforming, it's a neat gimmick but a little hard to make out. Almost every A.T. vehicle uses a new Mega Bloks-style cockpit system, but it's got a good look to it and could easily be replaced by classic Lego cockpit designs without compromising anything.
I picked up the 4743 Ice Blade yesterday, it's a pretty good-sized set for $10 at just over 100 pieces, looks like a way better buy than the 4744 Tundra Tracker which is only 30 more pieces but twice as much money. I was surprised to find clear orange parts that aren't the fluorecent style and a minifig with a yellow head (I thought we went to pink). The transformation from snowmobile thing to helicopter is pretty neat and quite effective but not terribly complicated. The inclusion of a few Bionicle weapons isn't too jarring and makes for a pretty good set of (non-moving) treads and the namesake of the set, the large "ice blade" at the front -- purists should have no trouble replacing these with something else though. Like other Alpha Team sets, it's a little on the kiddie side of Lego System, but that's not always a bad thing.
Unfortunately, I find that I really don't have much desire to pick up the other sets. The only one that looked initially appealing to me was the Tundra Tracker, but it's too much money, has a pointless transformation scheme, and just doesn't really interest me at all. As much as I love morphing vehicles, the arctic theme limits things a lot and the transformations on the other sets look pretty dull. I hope Lego keeps Alpha Team vehicle morphs in the next series, but goes with better morphs and a more general theme than arctic.