I haven't experienced any small-but-annoying bugs on 4.4. But mine is a brand new phone and I went directly from stock to 4.4. In the interests of full disclosure, here are the only issues I have run across so far:
- That 3D hologram program runs like crap. Less than 10 frames per seconds, even though the program reports that it's running at 25 or 50 FPS. So, I unistalled it.
- The S2P music player refuses to display more than one album cover at a time. Still hoping to find a fix for that one, since I like the player otherwise.
- My phone shut itself off (crashed, I think) this morning, and would not turn on again. With visions of brick-age running through my mind, I pulled and replaced the battery. That fixed it. Seems okay now. This is what I was doing just prior to the "incident":
I went into TF3D > Settings > Communications, and toggled the "Data Connection" item to off. I then went to the Weather tab to see if it would still update. It did. I thought, "Hmm, I guess that option doesn't do what I thought it might." I then went into Opera and tried to load a page. Failed. The browser just sat there, did not load anything. Okay, maybe that setting
does do what I thought. I then went back and toggled "Data Connection" back on. Opera was still running, so I tried a refresh. Got a full blown network error this time. Looked away, and bam, the phone turned off. (Or maybe locked up. It
looked off.)
In addition to 4.4, I have the Telus radio ROM.