Get it here.
There are a few bug fixes and regressions fixed in this beta. There are also a few new (very minor) things included here. "More" tags for blogs will be automatically recognized and let through to the server, even if you have "Escape > and <" turned on. If you hold the Option key when connecting a touch device, you can choose to which document you'd like it to sync. I added a new debugging tool in the Help menu: a network log for seeing what is happening during blogging. There are also some improvements regarding touch device syncing: large syncs should do better now.
Please let me know of any problems, specifically regarding touch syncing. Please let me know if that got better or worse for you.