After playing the beta for a bit, I got convinced that SC2 works well on my laptop; well enough for me, at least. Yes, the framerate is not that great, but I can't expect it to be 60FPS given that my laptop only packs an Intel 4500M GMA Integrated Graphics chip, Pentium Dual Core T4300, and 4GB of RAM (Asus K40IJ series). But, miracle of miracles, the thing is playable! And now that I've seen the pre-rendered cutscenes, I'm even more awed.
I never thought my laptop could render the cutscenes in this game smoothly. Yes, the graphics have lesser textures, but damn, they're watchable....they're bearable. This is coming from a guy who is used to Xbox 360 / PS3 graphics.
Starcraft 2 is a gem, no, a crowning achievement, when it comes to forgiving minimum system requirements :D