Same thing happened when the Incredible shipped.
Most of the people who post are going to be people who have problems with their devices. Especially those who spend a lot of disposable income and expect perfection.
There will ALWAYS be fit-and-finish manufacturing issues because all of the world's electronics are built in the same few factories with the cheapest possible labor. Very few companies take the time to do proper QC, especially when you are trying to deploy hundreds of thousands of units.
A few Incredible owners were complaining about battery life, dust under the screen, muffled calls, strange behavior with some 3.5mm cables, and touchscreen grounding issues.
A few Evo owners are complaining about battery life, dust under the screen (now possibly due to screen separation), and possibly the same grounding issues.
Notice a trend...
I'm sure the manufacturing problems will be ironed out over time, but you have to realize that people who buy their stuff on launch day are basically getting a device created with a work-in-progress manufacturing process.
This is why some people don't buy cars that are on their first model year.
-Mike