Would be great if it worked consistently. It'll work perfectly one day. Then the next day when I go to sync again, I either get an error message saying the sync session failed to start, or it'll start to sync and stop within 15 seconds without an error. To get it to work again, I usually have to reboot my phone (sucked even more with tethered JB), then it'll work fine til the next day. Other times, rebooting my phone alone doesn't work and I have to reboot the whole computer. Then it works again until the next day. And I'm sure it's not JB related because the same thing happens with my wifes non-JB iPhone 4 on a different computer. Really disappointed in this. Thought 5.0.1 would fix it, nope!