I remember RemoteSMS. It's a good example and it worked well on Android.

So, as the OP for this thread, if a similar app for the N9 were developed with a decent GUI on the pc, I'd donate: £15GBP. I would certainly expect to pay a premium amount if such an app turned up on the Nokia Store.

Whilst there are workarounds to get Nokia/Ovi Suite to sync with the N9, many, like me, are finding that the ability to send an SMS via the Suite has gone (I think since PR1.2).