Which technology to choose for data exchange between iPad - server - iPad?

Question

client-server

Hello,
I want to make an application for the iPad with which I could draw diagrams, graphs, etc. by hand and they would be displayed in real time on another iPad. What is the best way to implement this idea? Rails? It is necessary that the data pass through the server and without delay. Maybe there is already a place to see similar projects.
Thank you.

Answer 1

It looks like people have a strong association with Rails = Holy Grail.
Make a server with normal tcp/ip connections. If you want Ruby - take EventMachine and go.

Answer 2

I would take Google App Engine with Go. It is quite easy to implement such interaction on its channels. Plus, the speed itself is high.