It doesn't look like there is any way to export or import the hosts
list from ConnectBot, so the only way to do this would be to back up
the app. This would require root access on the phone.
TitaniumBackup (
https://market.android.com/details?
id=com.keramidas.TitaniumBackup) is the most frequently recommended
backup program for root, but there are others out there.
Since this is a list of people who know ssh, you may also know rsync.
rsync backup for Android (
https://market.android.com/details?
id=eu.kowalczuk.rsync4android) is a great complement to TitaniumBackup
if you don't want to use DropBox. This tool can rsync whatever you
want from your SD card over ssh to your own server. With Tasker, you
can automate it.