Thanks very much for this application - I installed it (version 2.1.3) a few months back on my netbook (Acer Aspire One, running Mint 12 32-bit); however recently it developed a funniosity - wouldn't sync properly, so that a book I'd bought recently didn't appear in the library, though it *was* in the library on my Kobo Touch. I downloaded the deb file from http://dl.dropbox.com/u/2183775/kobo-desktop.deb
as given by Smylers in post #304 and re-installed, and I'm now back in business - started up the new version, it synchronised straight away, and the missing book is in the library. Great stuff!
I might get round some time to trying to install it on my big laptop and my desktop (both running Mint 12 64-bit)...