My replacement Kindle was shipped as KSO on 3.2.1, after a call to Amazon they were able to disable KSO features remotely. There is a framework call that can do this, here is an excerpt from dump.
110524:183232 cvm[3263]: I WirelessImpl:EnsureConnectionStatus:hasConnection= true,reason=ConnectionAvailable:Ensure connection succeeded
110524:183232 cvm[3263]: I TaskProcess:ProcessingStarting:action=SET,type=SCF G,key=whitelist-http:Start processing item.
110524:183232 cvm[3263]: I TaskProcess

ynamicConfig:status=start:Parsing new dynamic configuration
110524:183232 cvm[3263]: I TaskProcess

ynamicConfig:status=success:Successfu lly installed new dynamic configuration.
110524:183232 cvm[3263]: I TaskProcess:ProcessingFinished:action=SET,type=SCF G,key=whitelist-http,status=COMPLETED:
110524:183232 cvm[3263]: I WirelessImpl:EnsureConnectionSkipped:currentConnec tion=wifi,lastConnection=wifi,currentTime=221.72,l astConnectionTime=221.63,inSuspendCounter=0,lastIn SuspendCounter=0:
110524:183233 cvm[3263]: I TaskProcess:ProcessingStarting:action=SET,type=SCF G,key=whitelist-https:Start processing item.
110524:183233 cvm[3263]: I TaskProcess

ynamicConfig:status=start:Parsing new dynamic configuration
110524:183233 cvm[3263]: I TaskProcess

ynamicConfig:status=success:Successfu lly installed new dynamic configuration.
110524:183233 cvm[3263]: I TaskProcess:ProcessingFinished:action=SET,type=SCF G,key=whitelist-https,status=COMPLETED:
110524:183233 cvm[3263]: I WirelessImpl:EnsureConnectionSkipped:currentConnec tion=wifi,lastConnection=wifi,currentTime=222.19,l astConnectionTime=221.63,inSuspendCounter=0,lastIn SuspendCounter=0:
110524:183233 cvm[3263]: I WebServicesImpl:UploadReadingExperienceJournal::No registered user. Aborting.
110524:183233 cvm[3263]: I CdeAndTodoPlug:Information::Uploading journal for reading experience.
110524:183233 cvm[3263]: I WirelessImpl:EnsureConnectionSkipped:currentConnec tion=wifi,lastConnection=wifi,currentTime=222.42,l astConnectionTime=221.63,inSuspendCounter=0,lastIn SuspendCounter=0:
110524:183233 cvm[3263]: I LipcService:EventArrived:source=com.lab126.wifid,n ame=signalStrength,arg0=5/5,arg1=<None>:
110524:183233 wifid[2518]: I lipc:evts:name=signalStrength, origin=com.lab126.wifid, fparam=5/5:Event sent
110524:183233 wifid[2518]: I wmgr:rssi update:rssi=5/5:
110524:183234 cvm[3263]: I CdeAndTodoPlug:ServerResponse:code=200:upload response
110524:183234 cvm[3263]: I CdeAndTodoPlug:UploadStats:len=89,rate-info=(0+708 ms_ 0.98 kb/s),type=unknown,key=unknown,network=wifi:
110524:183234 cvm[3263]: I WebServicesImpl:UploadReadingExperienceJournal::do ne
110524:183234 cvm[3263]: I TaskProcess:ProcessingTaskList:loc=10:done processing todo list
110524:183234 phd[2603]: I lipc_cb:todo_completed::
110524:183234 phd[2603]: I wait:signal

ctw=0 (*signal received*), action="stop", interval=5m, wanted = 2011/05/24-Tue-18.38.05 (331s early):
110524:183234 phd[2603]: I timer:stopnow:next_interval = 2m:
110524:183234 cvm[3263]: I lipc:evts:name=todoCompleted, origin=com.lab126.framework:Event sent
110524:183234 cvm[3263]: I TaskProcess

eferStatus:defer=false:Setting defer status
110524:183234 cmd[2505]: I lipc:evts:name=intfPropertiesChanged, origin=com.lab126.cmd, fparam=wan:Event sent
110524:183234 cvm[3263]: I ConnectionService:LipcEventArrived:source=com.lab1 26.cmd,name=intfPropertiesChanged,arg0=<None>,arg1 =wan:
110524:183234 cvm[3263]: W ConnectionService:UnhandledLipcEvent:event=intfPro pertiesChanged:
110524:183239 Accessory port disabled!