Share your experience!
After initial sync with an iTunes playlist (about 20 Gb of music), Sony bridge won't sync any more 
When connecting the phone (Sony Xperia Active), it will try to detect the phone, but that takes forever - i.e. never finishes. I have tried to leave the phone connected to my mac overnight (about 12 hours), but that didn't help.
If I delete all my music on the phone, I can do a sync again, but since a full sync takes multiple hours that is not a good solution.
Any ideas on what could be wrong?
Have you tried to reinstall Bridge for Mac? If not I suggest that you do.
If problem still remains you could try to master reset the phone to check if it makes any difference.
I have now reinstalled Bridge for Mac (version 3) and upgraded to Android 4.1... it seems to help somewhat.
My phone is always detected now and sync works when new songs are added to my sync playlist, but if songs are deleted form the playlist I get an error:
Sync completed with xxx errors.
Details doesn't show any additional information. The number of errors seems to correspond to the number of files to delete.
There doesn't seem to be any information regarding the error in Console.app
I have also experienced a few crashes of bridge software:
Process: Sony Ericsson Bridge for Mac [16029]
Path: /Users/USER/*/Sony Ericsson Bridge for Mac.app/Contents/MacOS/Sony Ericsson Bridge for Mac
Identifier: com.sonyericsson.Sony-Ericsson-Bridge-for-Mac
Version: 3.0 (3107)
Code Type: X86 (Native)
Parent Process: launchd [242]
Date/Time: 2012-08-23 18:00:01.776 +0200
OS Version: Mac OS X 10.7.4 (11E53)
Report Version: 9
Interval Since Last Report: 213918 sec
Crashes Since Last Report: 2
Per-App Interval Since Last Report: 63253 sec
Per-App Crashes Since Last Report: 2
Anonymous UUID: 95E14A2B-1237-4F66-A5C1-767EB772BFDC
Crashed Thread: 3 Dispatch queue: com.apple.root.default-priority
The reason it nearly worked seems to be, that the phone was in MTP after the upgrade to Android4.1... if I switch to mass storage the situation is exactly the same.
This problem is new to me, so I will have to forward it and check around the forum if any other users are experiencing the same problem. Please let me know if you have seen other threads about the same problem.