I dont know for sure its only 3%, but 3% of the approx 300000 units they supposedly sold on this initial roll out would come to 9000 defective ones..I dont think more than a couple hundred people here, at the most have posted this issue, and, since this is probably the number ! board for evo users out there, its probably pretty representative of what is out in circulation..
At Sprintusers.com, hardly anyone is posting about this issue, and at android central, there aren't that many either..
Draw your own conclusions about how many there are out there with this issue, but I doubt its not that much more than 9000 units, if that many..
I do think HTC has to show concern for this issue, especially in light of the nightmare that Verizon Incredible users went through with dropped signal strength and atrocious call quality..