I just choose to not call someone if I don't want to speak to them. I hear also that others have had issues with the app because the call doesn't go directly to the recipients voicemail; there's a ring on their end.
I think it's a great app, particularly for those times you want to get someone a message but do not want to engage them in chatty talk. I first tried it out with my wife's phone and there was no ring -- just the voicemail alert.
My only problem with it is that it is the winner of the Most Gigantic Icon prize. That sucker is HUGE.
Shame it's not available in the UK yet - looks good - I'd probably stay in touch with people even more if I didn't have to risk a long conversation with them!
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