[Desire Android Development] SoWhy:
I just provoked it again, this is the log of the last three seconds before the restart as far as Catlog was able to record (although it's possible that the last lines were lost due to the random reboot but maybe it helps):

02-27 15:02:46.479 D/Finsky ( 678): [1] DownloadQueueImpl.startDownload: Download com.estrongs.android.pop starting
02-27 15:02:46.639 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.alensw.PicFolder
02-27 15:02:46.649 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.tbig.playerpro
02-27 15:02:46.669 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.google.android.music
02-27 15:02:46.759 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.alensw.PicFolder
02-27 15:02:46.769 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.tbig.playerpro
02-27 15:02:46.809 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.google.android.music
02-27 15:02:46.859 D/Volley ( 678): [1] Request.finish: 33866 ms: [ ] [url]https://android.clients.google.com/vending/api/ApiRequest[/url] LOW 46 GetImageRequestProto
02-27 15:02:46.869 D/Finsky ( 678): [1] DownloadImpl.setState: com.estrongs.android.pop from QUEUED to DOWNLOADING.
02-27 15:02:46.879 D/Finsky ( 678): [1] DownloadQueueImpl.notifyProgress: com.estrongs.android.pop: onProgress 0/-1 Status: 190.
02-27 15:02:46.889 D/Finsky ( 678): [1] Installer.downloadAndInstallAsset: Downloading and installing com.google.android.music
02-27 15:02:46.889 D/Finsky ( 678): [1] DownloadImpl.setState: com.google.android.music from null to UNQUEUED.
02-27 15:02:46.929 D/dalvikvm( 678): GC_CONCURRENT freed 1835K, 13% free 14657K/16839K, paused 3ms+7ms
02-27 15:02:46.929 D/Finsky ( 678): [1] DownloadQueueImpl.add: Download com.google.android.music added to DownloadQueue
02-27 15:02:46.929 D/Finsky ( 678): [1] DownloadImpl.setState: com.google.android.music from UNQUEUED to QUEUED.
02-27 15:02:46.929 D/Volley ( 678): [1] Request.finish: 4884 ms: [ ] [url]https://android.clients.google.com/vending/api/ApiRequest[/url] NORMAL 48 GetAssetRequestProto
02-27 15:02:47.109 D/Finsky ( 678): [1] DownloadQueueImpl.onStart: com.estrongs.android.pop: onStart
02-27 15:02:47.139 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.alensw.PicFolder
02-27 15:02:47.149 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.tbig.playerpro
02-27 15:02:47.169 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.google.android.music
02-27 15:02:47.249 D/Volley ( 678): [82] BasicNetwork.logSlowRequests: HTTP response for request=<[ ] [url]https://android.clients.google.com/vending/api/ApiRequest[/url] LOW 43 GetImageRequestProto> [lifetime=4627], [size=5628], [rc=200], [retryCount=1]
02-27 15:02:47.249 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.alensw.PicFolder
02-27 15:02:47.269 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.tbig.playerpro
02-27 15:02:47.339 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.alensw.PicFolder
02-27 15:02:47.349 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.tbig.playerpro
02-27 15:02:47.500 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.alensw.PicFolder
02-27 15:02:47.510 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.tbig.playerpro
02-27 15:02:47.570 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.alensw.PicFolder
02-27 15:02:47.580 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.tbig.playerpro
02-27 15:02:47.610 D/Volley ( 678): [1] Request.finish: 34686 ms: [ ] [url]https://android.clients.google.com/vending/api/ApiRequest[/url] LOW 43 GetImageRequestProto
02-27 15:02:47.770 D/Volley ( 678): [80] BasicNetwork.logSlowRequests: HTTP response for request=<[ ] [url]https://android.clients.google.com/vending/api/ApiRequest[/url] LOW 44 GetImageRequestProto> [lifetime=5141], [size=5482], [rc=200], [retryCount=1]
02-27 15:02:47.810 D/Volley ( 678): [1] Request.finish: 34868 ms: [ ] [url]https://android.clients.google.com/vending/api/ApiRequest[/url] LOW 44 GetImageRequestProto
02-27 15:02:48.250 D/Finsky ( 678): [1] Installer.downloadAndInstallAsset: Downloading and installing com.alensw.PicFolder
02-27 15:02:48.250 D/Finsky ( 678): [1] DownloadImpl.setState: com.alensw.PicFolder from null to UNQUEUED.
02-27 15:02:48.250 D/Finsky ( 678): [1] DownloadQueueImpl.add: Download com.alensw.PicFolder added to DownloadQueue
02-27 15:02:48.250 D/Finsky ( 678): [1] DownloadImpl.setState: com.alensw.PicFolder from UNQUEUED to QUEUED.
02-27 15:02:48.250 D/Volley ( 678): [1] Request.finish: 6201 ms: [ ] [url]https://android.clients.google.com/vending/api/ApiRequest[/url] NORMAL 50 GetAssetRequestProto
02-27 15:02:48.310 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.alensw.PicFolder
02-27 15:02:48.320 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.tbig.playerpro
02-27 15:02:48.461 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.tbig.playerpro
02-27 15:02:48.511 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.tbig.playerpro
02-27 15:02:48.711 D/Finsky ( 678): [1] DownloadQueueImpl.notifyProgress: com.estrongs.android.pop: onProgress 0/-1 Status: 192.
02-27 15:02:48.781 D/Finsky ( 678): [1] Installer.getAppsEligibleForAutoUpdate: Market will auto-update com.tbig.playerpro
02-27 15:02:49.532 I/DownloadManager(11844): Initiating request for download 89
02-27 15:02:49.552 D/Volley ( 678): [75] BasicNetwork.logSlowRequests: HTTP response for request=<[ ] [url]https://android.clients.google.com/vending/api/ApiRequest[/url] NORMAL 49 GetAssetRequestProto> [lifetime=4358], [size=387], [rc=200], [retryCount=0]