Sounds cool, as long as it does bets use of all available data, i.e. automatically places GPS position in map, etc. Of course it also depends on how high this fee would be, but if it would allow such service running + acted like small donation to SMSCON devs, why not?

After all, it's still possible to use SMSCON without that, and I can imagine, that developing non-web features wouldn't get hurt/slow down.