Thats funny as ive seen these from time to time on my AV2, but couldnt trace it. So I just checked the error log which was clean, then ran my Crestron on my Galaxy S3. I went to a few pages, then hit the back button til it exited the app, then refreshed the error log and found this:

3. Error: C_ControlSysXMLServer::ScheduleTermination
TimeStamp: 20:29:53 4-25-13 UpTime: 0 days 04:05:40.91 Task: TCP_Read

Tried it again and instead used the home button to exit, and the error popped up again. I have the Crestron Mobile symbol setup correctly in the program (pretty much like yours, but perm string size at 255) and have never noticed any performance issues. Maybe should call TB and see what they say about it. At least we can reproduce it.

Gonna try my ipad later when its available. Wanna see if it comes up with that too.