I have been running a version with seconds added and no background image in landscape, and I really prefer this version.
It matches the portrait background and it also seems to be the preference of most of visitors to this thread.

For now I have two versions available (version without background and seconds in landscape: http://dl.dropbox.com/u/42147901/worldclock_no-bg.zip)

Try them both if you can't make a choice right now . In the first post there is a screenshot of both versions in landscape.

Looks like we are coming to a stable version with no open bug reports. If that stays this way, I plan to leave the replacement clock development as it is for a while and see where to go from there on a later moment.

@AapoRantalainen: I will look somewhat further regarding your compile errors.