The dropbox version appears to have been updated to 3.04. In order to get it to start in Ubuntu 12.10 64bit I hade to create links to the libicu4 files. I can't do much with it because I get an error when trying to sign in or do anything else.
/usr/local/Kobo/Kobo: symbol lookup error: /usr/local/Trolltech/Qt-4.8.0/lib/libQtWebKitKobo.so.4: undefined symbol: ubrk_open_44
Nice to see this is not dead though.