I think transmitting a beacon is rather useless, if we send a beacon and it is found the chance that they'll understand it is very small, and if they except a invitation to come the welcome commity will most likely be special forces and jet fighters because we don't know what's happening. A warm welcome.Seti@home is a nice project because somebody just might find an artificial transmission and it's cheaper to lend the calculation power then to buy it. I do have some suggestions about the information shown on the screensaver. Mostly like "time to completion" and "average computer time per data unit".