Well, to be honest Igriffin, the only kinks i've had come from old game errors. Like the high quality movie pack for KoToR 2 that when installed turns the game into the biggest bsod error in the world, and the fact that World of Warcraft turns into a red headed step-child when you try to alt-tab when running both video cards (as long as you don't try to alt tab, the game runs beautifully). When I get some time I'll work on the follow up review, but I can answer your questions now. I use it mostly on a desk, while it is usable and cool enough to use on your lap (most of the hot air blows out the back and right back corner), the size of it and how far back the screen sits makes it extremely uncomfortable to hold as the weight of the screen tries to tip it off your lap. I'm 6'2 and my legs still aren't quite long enough to comfortably bance the mALX on.
As for the Moddeling software, I've used Milkshape on it several times for over an hour each time with excellent results, sadly I haven't used Alias Studio, so I can't give you an answer. But as for general performance, while not core duo, you still get very nice multitasking results. 4 internet windows, milkshape, yahoo music engine, two downloads, and my word processor of choice running at once with no noticable system slowdown except the occasional window changing hiccup.
As for the lap use, I would suggest getting one of those meal tray like lapboards and using it just for the added balance. The mALX is sadly backheavy enough to be hard to use on your lap. Hope that helps you guys, and don't get too impatient, these machines are WELL worth the wait. If anyone wants to ask me anything else, either pm me or just ask in this thread.