a- The title of the application is Scribblar. Scribblar is the best real time white board application I have ever seen. Stefan Rixhler built the scribblar.
b- The purpose of Scribblar are:
1-online training and tutoring
2-Revising artwork and images
4-Sales and product demos
5- Interviews and tests
6- It makes student collaboration really easy.
7- To keep every body on the same page, so scribblar has a chat window so, collaborators can communicate.