The “Quick List” application that loads on a long press of the end call/power key was a very sensible extension of the power button’s functionality, especially on a WinMo device with as few buttons as the HD2.
However many have found it both useful and lacking; while a data connection toggle is included, the arguably more useful WiFi toggle has been left out, and we have been graced instead with blank space on the remaining unused third of the screen.
While it won’t make HTC’s design choices any less mysterious, xda-developers member kurt-willems has created what the stock Quick List application should have been, also including soft reset and bootloader buttons for those with a tendency to fiddle.
Head to the application thread for the download (in 18 languages!)_________