SOTA Spotter for Android has reached version 0.5.68. Besides some minor bugs fixed, it now includes the possibility of spotting via SMS gateways. At the moment, the only gateway included is EA SpotSMS - thanks to EA2CQ - but more will be added in the future.
You can get it on Google Play, at https://play.google.com/store/apps/details?id=ro.netroute.sotaspotter
I hope you enjoy it!
73, Bogdan YO8SAW