Great review Rehman ji.... +1 to you...
For the difficulty in disconnecting a call (which rarely occurs in my photon), I use the option in ACCESSIBILITY settings [Power button ends the call]...
As a prev EPIC user, I was once NOT happy with the video playback capability of Photon (Rock player) as some few-hundred-MB-video-songs play nicely in epic, but struggled in Photon... Further Photon can't play sounds in videos of some files... Later I saw MX VIDEO PLAYER (FREE) in AM, which makes use of Dual-Cores and then the videos played better in Photon... It also has option to select/play audio-track of false-stereo video files and solved the audio issue as well.. Then I uninstalled all my other video layers... It is a must have for all Dual-core phone users, imho... My naughty baby sits silently and loves to watch video-songs on photon with kick-stand open..
But for me, photon's screen is a mixed bag... Though EPIC's screen is also of pentile matrix, its rarely felt comparing photon, imho.. What I am trying to say is pentile AMOLED is much better than pentile LCD... But if the user has not used AMOLED for long time earlier, then that won't make a huge difference, imho... RGB_AMOLED (SAMOLED+) >> Pentile_AMOLED === RGB_LCD >>> Pentile_LCD