Michael Orthofer reports from the Complete Review that Milan Kundera refuses to sign contracts to release his titles to e-publishing:
...for several years, he's insisted on a clause in his contracts stipulating that his books only appear in 'traditional' (i.e. printed) form -- no e-book versions. And, indeed, you won't find any Kundera titles on Kindle (etc.).
Not many authors are still holding out from e-formats -- and, indeed, presumably few have enough clout to be able to do so. Kundera can afford to -- though one has to wonder: to what end ?