Version 1.0.14 is now on the Android Market. It now no longer displays ??? / ??? when there was an error contacting the Telemeter4Tools service. Instead, it will display the last known Telemeter value, but coloured red, indicating it might be slightly out of date...
Of course, if there is no previously known Telemeter value, ??? / ??? will still be shown on error.
That's it!