Nope, no problems. I set it on a variety of surfaces and mounts for use and I've never had a problem. I was a BB user though the great browsing experience on the Incredible blinds me to any potential issues.
I have really only had one nitpicky issue, and its not even relevant to the Incredible as much as all capacitive screens in general. I love the NESoid emulator to death, but I was always a button masher back in the day... with this you have to be delicate and precise. I have a hard time hitting A+B together and sometimes the D-Pad goes wonky.