Friend Connect integration issues:

• Currently the Friend Connect settings page will display in the same language as the blog hosting it. We are working on a fix to have this page reflect your default Blogger.com language.
  

• Following a blog with the 'Add from URL' feature in your dashboard currently doesn't work with the eight Indic languages. We should have this resolved shortly once we get the proper translations, however you can still follow a blog directly if the gadget is enabled.

• Some users with a rectangular Blogger profile image may notice size distortions in Friend Connect. We are working on a fix.

• Following doesn't currently work if you have an iGoogle gadget in your layout. We're working on a fix, but in the meantime you can remove any iGoogle gadgets from the Layouts | Page Elements tab.
  

NonEngLangInPicasaWebAlbums

Users who have their Picasa Web Albums language set to a language other than “English (United States)” will not see their albums of photos uploaded through Blogger.

Currently the Blogger beta interface is only available in English. Update (9/12): This is a lengthy process, things are moving along. Update (Nov 2): The Blogger Beta is now available in English, French, German, Italian, and Spanish. More languages will be coming shortly. Update (Nov 10): We've added Japanese, Korean, Brazilian Portuguese, and simplified Chinese support to the new version of Blogger.

Some blogs configured with a non-english language cannot be displayed. We are working on this issue. A workaround is to change the blog's language to English until the issue is resolved.

Update: These blogs are displaying in English now. We are working on a fix to display them in their intended language and will have this available ASAP. Thanks for your patience.

Update(11/9): We resolved this last Friday.