One thing I've found over and over is that the "earlies" have a kind of technology intuition that lets them <i>feel</i> how a product could or should work and the courage to just try things to see if the product might work like that.
What this means is that a product not only needs to be far less polished for the "earlies" to make use of it, it doesn't even really have to be finished.<p>On the other end of the spectrum, the "normies" will have trouble figuring out that the "file->save" option will save their work to disk, even though its exactly like the one in Word. You'll have to tell them this explicitly somehow, and even then, they'll be so afraid of breaking something that they'll need someone else to demonstrate it to them before they'll try it on their own.