Improve your contact with friends and family using "voice" emails!

I'm a peruvian citizen living in Europe. It means that I have many important persons far from me. Actually the distance problem is partially solved because I use MSN Messenger to communicate with them using video and voice.
But my family or friends are not always online at the same time with me. So the perfect solution would be here to send them email messages with voice!
I found a free service that helps on that task.. and I really like it! It's name is SpringDoo
But I should not forget to say that it also include the possibility to add video!
Give a check on their demo
The service is not for commercial use. So give a check on their terms of use.