Right now the phone book of Playsms is not very convenient.
The phonebook need to add feature so that how much contacts are there in groups can be seen. Also numbers should be managed easily.
Also on compose page there should be a feature that after selection one or several groups how much total sms will be send to how much contacts should be added.
Right now there is know way to know how much contact are there in a group. Also its impossible to know how much total sms will be send to how much contacts before sending sms.