I did not update to 3.1. However, I did update to iTunes 9 and sync my jailbroken 3G that's running 3.0.1 last night. iPhoneBrowser worked fine the last time I used it (last week). When I tried to open iPhoneBrowser this morning, it repetitively crashed upon opening. I uninstalled and reinstalled it, but the problem remained. I'm thinking syncing in iTunes 9 changed something on the phone making it incompatible with the latest version of iPhoneBrowser? A new version will probably be released soon. I'm using OpenSSH now.