My biggest problem with Android 4.x is the fact that it doesn’t use a menu button anymore, and with my new HTC One (witch i LOVE) i get this awful black menu bar, on my Nexus 4 it’s fine, but on the One, it’s terrible! Also the back button doesn’t always take you back.
Chrome : I like syncing tabs between my devices, but on the Nexus 4 chrome LAGS! (On the HTC One it’s actually good)
Quick settings are great but they should work this way : One tap for activating/disabling wifi/bluetooth… and a tap and hold to get to the settings
The Play Music app is ugly and the blue theme doesn’t fit with the rest of the apps
I wist that accounts is settings didn’t take a whole section, but rather stayed as a sub-menu, this makes the settings app abit more cluttered MESSAGINGAPPSOVERLOAD, GOOGLEBABEL I’M WAITINGFORYOU
Social integration in the people app
No tap to focus while recording a video, and while the camera UI on stock android is really nice, functionnality isn’t comparable to the HTC One’s camera app.
The navigation app doesn’t look “Holo”
I wish that anything related to costumisation (Widgets, launchers, icon packs, live wallpapers…) had a seperate section in the play store.
Google should seriously force developers to redesign their apps to Android 4.x guidelines, i don’t care about what it takes : threatening the devs, torturing them or giving them cookies, just fix your damn apps, it’s not 2011 anymore!