Our unhappy HTC EVO 4G owner is not the only one experiencing this sudden change in his phone's disposition. Some are complaining that certain notifications are not showing up like they once did. One unlucky owner has his SD card unmount itself 4-6 times a day since the update. Another user has his EVO 4G turn on its speakerphone whenever he brings the handset to his ear and some users are finding that while connected to Wi-Fi, their phone loses its internet connection.
No word yet from Sprint or HTC, but we would expect another upgrade to be sent to fix all the bugs that the last upgrade created.
Thanks Anonymous Tipster!