Just had a "duh" moment. I just realized I had access to an up-to-date 32 bit Kubuntu 11.10 install, so I went in, copied the libzip1 files and put them in my 64-bit Kubuntu 11.10 machine's /usr/lib32 and symlinked to libzip1 in the /usr/local/Kobo directory. Kobo is now up and running on the 64-bit machine. I don't have my Kobo ereader yet, so I haven't been able to check the USB connection.
