>letters didn't appear on the screen until a moment after you pressed your keyboard.
<eyes-closed> <imagining/> </eyes-closed>
Even in my imagination, Android installed base is still growing at nearly 2X of that of the iPhone. Apparently, most people don't care for whatever you're saying they should care about. I have experienced the lag you mention, but I have a big, lovely screen on my Galaxy S [which is one of the reasons I upgraded from my iPhone 3GS], so I'm okay with it. My wife (a realtor) has never mentioned lag as an issue.
I don't mean to be rude, but we hear so often that Android fanboys use the silliest things as justifications for the shortcomings of Android [and they do!]. At the same time, Apple fanboys trumpet the silliest of things as justifications for the superiority of iOS [witness the many apologies/rationalizations after the 4S announcement]. You're trumpeting a silly thing.