[myTouch 3G, Magic Android Development] Hintay:
Here is my logcat for download app.

06-05 16:23:06.080: DEBUG/SyncProvider(5752): match settings
06-05 16:23:07.370: DEBUG/StatusBarService(291): addNotification notification = StatusBarNotification(package=com.android.providers.downloads id=4 tag=null notification=Notification(vibrate=null,sound=null,defaults=0x0,flags=0x2)), key = android.os.BinderProxy@405b5bc0, fullScreenIntent = null, contentIntent = PendingIntent{405b5c20: android.os.BinderProxy@406265a0}
06-05 16:23:07.570: INFO/DownloadManager(6212): Initiating request for download 4
06-05 16:23:07.810: DEBUG/StatusBarService(291): old notification: when=1307262187171 ongoing=true expanded=android.widget.LinearLayout@405b2d28 contentView=android.widget.RemoteViews@406265d8
06-05 16:23:07.810: DEBUG/StatusBarService(291): new notification: when=1307262187806 ongoing=true contentView=android.widget.RemoteViews@40618690
06-05 16:23:08.390: DEBUG/StatusBarService(291): old notification: when=1307262187806 ongoing=true expanded=android.widget.LinearLayout@4058ae20 contentView=android.widget.RemoteViews@40618690
06-05 16:23:08.390: DEBUG/StatusBarService(291): new notification: when=1307262188337 ongoing=true contentView=android.widget.RemoteViews@405f3e68
06-05 16:23:08.590: DEBUG/StatusBarService(291): old notification: when=1307262188337 ongoing=true expanded=android.widget.LinearLayout@405eba50 contentView=android.widget.RemoteViews@405f3e68
06-05 16:23:08.590: DEBUG/StatusBarService(291): new notification: when=1307262188564 ongoing=true contentView=android.widget.RemoteViews@405d1320
06-05 16:23:09.940: DEBUG/SurfaceFlinger(214): layer=0x2710b8 is not in the purgatory list
06-05 16:23:10.150: DEBUG/StatusBarService(291): old notification: when=1307262188564 ongoing=true expanded=android.widget.LinearLayout@405fb250 contentView=android.widget.RemoteViews@405d1320
06-05 16:23:10.150: DEBUG/StatusBarService(291): new notification: when=1307262190091 ongoing=true contentView=android.widget.RemoteViews@405d1ca0
06-05 16:23:10.360: DEBUG/DownloadManager(6212): notifyDownloadCompleted status/ID: 200 / 4
06-05 16:23:10.460: DEBUG/NotificationService(214): cancelNotification, ACTION_NOTIFICATION_REMOVE,pkg=com.android.providers.downloads,id=4
06-05 16:23:10.640: DEBUG/StatusBarService(291): addNotification notification = StatusBarNotification(package=com.htc.wdm id=1146396 tag=null notification=Notification(vibrate=null,sound=null,defaults=0x0,flags=0x20)), key = android.os.BinderProxy@405f4d78, fullScreenIntent = null, contentIntent = PendingIntent{405f4ee0: android.os.BinderProxy@405a6340}
06-05 16:23:11.380: WARN/ActivityManager(214): No content provider found for:
06-05 16:23:11.560: WARN/ActivityManager(214): No content provider found for:
06-05 16:23:11.590: DEBUG/PackageParser(214): Scanning package: /data/app/vmdl204695604.tmp
06-05 16:23:17.900: WARN/PackageManager(214): clear PackageParser.PARSE_CHATTY
06-05 16:23:17.910: ERROR/PackageManager(214): Package com.htc.rosiewidgets.callmom has no signatures that match those in shared user com.htc.rosie.uid.shared; ignoring!
06-05 16:23:17.930: WARN/PackageManager(214): Package couldn't be installed in /data/app/com.htc.rosiewidgets.callmom-1.apk
06-05 16:23:18.180: DEBUG/NotificationService(214): cancelNotification, ACTION_NOTIFICATION_REMOVE,pkg=com.htc.wdm,id=1146396

I think the isuss is this:

06-05 16:23:17.910: ERROR/PackageManager(214): Package com.htc.rosiewidgets.callmom has no signatures that match those in shared user com.htc.rosie.uid.shared; ignoring!

Hope can help you!