commhistory Telepathy approver or handler instead of observer
I would like the ability to block SMS with something like scumstopper. On Harmattan this was possible with firewall Pro.
Per http://sourceforge.net/p/scumstopper/wiki/Home/ SMS blocking is currently not possible because Sailfish's "commhistory" daemon (which receives SMSes and alerts the user about them, among other things) installs itself as a Telepathy observer instead of an approver or handler, thus making it impossible to override through the Telepathy API. (This is also why blocked voice calls will still appear in your list of recent calls.)