First of all: The new version is very nice.
Some notices: When I´m selecting another language than english on install, some more settings under should be changed automatically, e.g. date format, time format and and charset. If your standard-language is not english, you have to make all the changes by hand.
Will be difficult to achieve for all languages, so this will most likely not be available in 2.7 sorry (doc)
What i´m missing too are some improvments in the media-section like preview, zip-upload.
Nice would be to change the owner of folders in the admin area. this would be very usefull for e.g. galleries, if you have to upload multiple-datas by ftp.
This would require some more changes and we will not include any new feature to 2.7. So maybe in 2.8 or 3.0. A forum member is writting a FTP module. In addition check out the tools listed on the help page, section knowledge base, article files and permissions. (doc)