After the Jailbreakme.com website went live, I believe I was one of the first few to jump on board. I wanted to jailbreak my new iPhone 4 so I could get back to the fun loving I had with my 3G with WiFi sharing/tethering and SBsettings, etc.
I remembered seeing Wi-Fi Sync on YouTube and TUAW, but I also knew that it didn't get approved by Apple, so I thought I'd add that to my list of Jailbroken Apps to check out. After doing some further "jailbreaking," I figured I've probably screwed up more stuff that I needed to, so I wanted to do a restore. Haha, well that didn't go so well. The iPhone 4 continuously hung at approximately 60%, and iTunes reported about 99%. I'm not going to lie, I started to freak. After a Google session and a couple of beers I've determined that the Wi-Fi Sync component on the Mac was the culprit. After running their uninstall script, I was able to completely restore my iPhone. Cheers to that! I hope this helps someone else who is desperately trying to find the solution.In case you haven't heard, Posterous, my website host has been battling a DoS attack (link to more info about DoS) for the last few days. Sorry for any outages.
As of this moment, it seems the attack has susided, but with the nature of this form of attack, you never know when the attack will return. Please bear with me as Posterous and I try to combat this attack.
Other sources of information: