New version 0.0.9 will be out soon.

There you have a new option [tout=integer] for setting a timeout to aquire a gps position when you are in "onlysat" mode. When not setting a timeout the application could wait forever to get enough satellites.
The timeout is in seconds, when this time is reached the application exits.

For sailfish the onlysat mode will now dismiss the first value which was known to be a last known satellite value. So this example command should give you now the current position, if enough satellites are visible. (could be same for harmattan I need to check)

SFOS out now others will follow next days.