So I'm giving Halo another try. Seems I've found a bug. I've pinned a few apps. When I receive a call, those apps seem to disappear from the Halo ring. First time it happened, they came back on their own after about 5 minutes. Second time, they're not coming back. (yet)
Motorola Q Black
Samsung Omnia SCH-i910 w/Adrynalyne's WM-6.1 v1.6
HTC Incredible ADR6300VW2 [S-Off] w/ CyanogenMod 7 & IncrediKernel
Samsung Galaxy Nexus
HTC Rezound ADR6425LVW [S-Off] w/ Beanstalk and Hiro Kernel.
HTC One ADR6500LVW [S-Off] w/ PAC-MAN
Kein Mitleid Für Die Mehrheit!