There was an article in the Times travel supplement this morning about the seaplane service. I hadn't checked the website for months, so I had a look to see what's new and they now have proposed schedules and fares for the summer, with flights to all the main Ionian islands, plus Brindisi and Patras.

http://www.airsealines.com/schedule.htm

Apparently, the recent cancellations of the Paxos services were due to the planes being in Indonesia, helping with the tsunami relief operations.