[Galaxy S II Q&A, Help & Troubleshooting] Kollagen:
Ok, here's what aLogCat threw out:

--------- beginning of /dev/log/system
[ 11-28 21:41:11.148 342: 1242 W/InputMethodManagerService ]
Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@41776630 attribute=android.view.inputmethod.EditorInfo@4176f960
--------- beginning of /dev/log/main
[ 11-28 21:41:17.953 608: 3353 D/dalvikvm ]
GC_FOR_ALLOC freed 122K, 28% free 8296K/11399K, paused 28ms, total 28ms
[ 11-28 21:41:17.953 608: 3353 I/dalvikvm-heap ]
Grow heap (frag case) to 16.555MB for 214528-byte allocation
[ 11-28 21:41:17.961 342: 407 I/ActivityManager ]
START {act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10200000 cmp=com.teslacoilsw.launcher/com.android.launcher2.Launcher u=0} from pid 342
[ 11-28 21:41:19.828 342: 1242 I/ActivityManager ]
START {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.android.settings/.Settings bnds=[0,368][120,533] u=0} from pid 731
[ 11-28 21:41:19.969 342: 398 D/dalvikvm ]
GC_FOR_ALLOC freed 2695K, 33% free 13312K/19847K, paused 106ms, total 106ms
[ 11-28 21:41:20.031 5946: 5946 W/System.err ]
Removed 2131231245
[ 11-28 21:41:20.031 5946: 5946 W/System.err ]
Removed 2131231256
[ 11-28 21:41:20.094 5946: 5946 W/System.err ]
Removed 2131231245
[ 11-28 21:41:20.101 5946: 5946 W/System.err ]
Removed 2131231256
[ 11-28 21:41:20.383 342: 398 I/ActivityManager ]
Displayed com.android.settings/.Settings: +397ms
[ 11-28 21:41:21.469 342: 819 I/ActivityManager ]
START {act=android.intent.action.MAIN cmp=com.android.settings/.SubSettings (has extras) u=0} from pid 5946
[ 11-28 21:41:21.586 5946: 5946 D/LocalBluetoothManager ]
setting foreground activity to non-null context
[ 11-28 21:41:21.695 342: 818 D/dalvikvm ]
GC_EXPLICIT freed 838K, 29% free 14174K/19847K, paused 3ms+6ms, total 90ms
[ 11-28 21:41:21.758 5946: 5946 W/System.err ]
Removed 2131231245
[ 11-28 21:41:21.765 5946: 5946 W/System.err ]
Removed 2131231256
[ 11-28 21:41:21.851 342: 398 I/ActivityManager ]
Displayed com.android.settings/.SubSettings: +315ms
[ 11-28 21:41:21.883 5946: 5946 W/System.err ]
Removed 2131231245
[ 11-28 21:41:21.883 5946: 5946 W/System.err ]
Removed 2131231256
[ 11-28 21:41:22.859 342: 416 D/BluetoothAdapterStateMachine ]
PowerOff process message: 1
[ 11-28 21:41:22.859 342: 416 D/BluetoothAdapterStateMachine ]
Bluetooth state 10 -> 11
[ 11-28 21:41:22.859 342: 416 I/bluedroid ]
Starting hciattach daemon
[ 11-28 21:41:22.890 342: 358 I/ActivityManager ]
Start proc com.android.bluetooth for broadcast com.android.bluetooth/.pbap.BluetoothPbapReceiver: pid=6418 uid=10003 gids={3003, 3002, 3001, 1015, 1028}
[ 11-28 21:41:22.945 6418: 6418 I/ActivityThread ]
Pub com.android.bluetooth.opp: com.android.bluetooth.opp.BluetoothOppProvider
[ 11-28 21:41:22.976 6418: 6418 D/BluetoothMasReceiver ]
Bluetooth STATE CHANGED to 11
[ 11-28 21:41:22.992 1576: 1576 D/Beautiful Widgets(4120000) ]
BLUETOOTH_STATE_CHANGED_ACTION
[ 11-28 21:41:28.508 5946: 5946 D/LocalBluetoothManager ]
setting foreground activity to null
[ 11-28 21:41:28.570 5946: 5946 W/System.err ]
Removed 2131231245
[ 11-28 21:41:28.570 5946: 5946 W/System.err ]
Removed 2131231256
[ 11-28 21:41:29.039 5946: 5946 D/dalvikvm ]
GC_EXPLICIT freed 206K, 14% free 10686K/12423K, paused 10ms+5ms, total 61ms
[ 11-28 21:41:33.008 5946: 5946 D/dalvikvm ]
GC_EXPLICIT freed 367K, 17% free 10324K/12423K, paused 1ms+8ms, total 48ms
[ 11-28 21:41:34.390 342: 819 I/ActivityManager ]
START {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 pkg=org.jtb.alogcat cmp=org.jtb.alogcat/.LogActivity bnds=[120,368][240,533] u=0} from pid 731