Anyone seen this sort of continuous soft rebooting? It's almost certainly an app problem, which I'm trying to narrow down, but it would make my life easier if I don't have to uninstall/reinstall a bunch of my apps to fix this...
I say it's almost certainly an app problem because when I first got my Droid, I could plug it into to a USB port and everything worked like it should. Then I went a couple weeks without plugging into a computer USB port, installed some apps, and next time I plugged it into a USB port, the Droid instantly went into a soft reboot (i.e. it goes straight to the white "Droid" lettering" and I never see the Motorola "bat" logo). Then, shortly after I get to the keyguard screen (no matter if I have it set to do the pattern unlock or the default keyguard screen, and no matter whether or not I unlock the Droid), it soft reboots again, and continuously soft reboots until I unplug the USB cable. Also note, I've only used the stock USB cable, and I've had the problem with both a desktop and a laptop (both with XP service pack 3).
I've tried doing battery pulls, but that hasn't solved the problem either. In fact, sometimes when I restart after a battery pull without my Droid being plugged in to anything, I get the same sort of continuous soft rebooting. However, I can usually stop the cycle by unlocking the keyguard screen (not the case when it's plugged into a computer USB slot.)
I have no problems whatsoever charging the Droid when the USB cable is plugged in with the AC charger, or even when I plug my Droid into a cigarette lighter adapter that has a USB slot.
For troubleshooting purposes, here's a list of my currently installed apps:
Abduction! ; AK Notepad ; Aloqa ; Amazon ; ASTRO ; B-Folders ; Barcode Scanner ; Battery Left ; BeamReader ; Bebbled ; Carrr Matey ; Coloroid ; DC Metro Train Info ; DockRunner ; Documents To Go ; Dolphin Browser ; Download Crutch ; ES File Explorer ; Flashlight ; GDocs ; Gmote ; Google Sky Map ; Google Voice ; GPS Status ; Handcent Sms ; KeepScreen ; Key Ring ; Mileage ; Missed Call ; Mobile Banking ; MotoTorch LED ; Movies ; My Maps Editor by Google ; My Tracks ; No Signal Alert ; Not Call Log prefs ; OpenTable ; PicSay ; Places Directory ; Plink Art ; Ringdroid ; RMaps ; Robo Defense FREE ; Shazam ; Silent Mode Jammer ; Sound Manager ; Spare Parts ; SportsTap ; TTS Service Extended ; Volume Control ; Where's My Droid ; Where ; Wifi Analyzer ; WikiMobile