No, jpilot (or pilot-xfer) is the network-listening daemon.

Just to eliminate any unrelated network issues, can you ping the Linux box from the tablet and/or vice versa?

Do you have firewalling enabled on the Linux side by any chance (see output of "sudo iptables -L -n")? GVM needs to be able to connect to your PC's TCP port 14238 for hotsync to work.